Pannier touring with low spoke count wheels

If those wheels will actually support 240 some odd pounds then you're more than fine, the only problem is that if one spoke breaks the whole wheel could taco vs a 36 or 40 spoke wheel would only require a minor truing of the surrounding spokes and you could still ride it.  

I know that they can make strong enough wheels to tour on with only 32 spokes, but that doesn't mean I buy into it for heavy loads.  While they should hold up just fine, but depending on the weight you'll be carrying it's far safer over a long period of time to have 40 hole rim on the rear and 36 on the front, at the very least go with 36 rear and 32 front.  You can take that anyway you want, no big deal, we all do things the way we want or feel safe in doing.  

Read this site, it does say 32 spokes could be ok, but again I don't agree with it, when I'm out on the road and far from some place that can fix a wheel I want my wheels, and other stuff I use, to be over engineered to reduce the possibility of failure to almost zero.  It's why on my main road bike (not the touring bike) I opted to put on the Enve 2.0 fork because while the the Enve 1.0 was lighter and even though it was rated 240 pounds and I only weigh 165, the 2.0 was rated for 340 pound rider, I wanted to make sure it would support me as well as impacts riding along at 20 mph into road ruts, railroad tracks etc without worrying about the fork.  My touring bike has 40 spoke rear and a 40 spoke front (the factory was suppose to put on 36 and it's spec'd that way in the catalog but for some reason it came with 40 spokes, but 36 would have been fine), currently I'm doing short tours but the stuff I have is going to work for longer tours I'm planning, but the weight of my load is only 45 to 50 pounds plus 25 pound bike and 175 pound rider with clothes on...which is always a good idea to have clothes on when riding a bike in public.  Anyway here's the site I promise a long time ago:  https://www.cyclingabout.com/the-best-rims-for-bicycle-touring/  

Even though I use 40 spoked rims I still carry a couple of FiberFix spokes because again I don't want to be stranded someplace far from a bike store should a spoke or two break. Of course if you're only ever going to carry 25 pounds or so than yes a 32 spoke rim would be fine depending on how much you weigh of course.

But you have to do what you feel comfortable with and if you'll be traveling to remote areas, or if the surfaces you'll be riding are going to smooth or rough.  

I ride RS11s as my winter wheels (20/16 I think the spoke count is) over potholed roads and I'm around 18st. Utterly bombproof, I think I've trued them once in three years riding. 

if you take the std 55/45 split for weight distribution that gives you 66kg for the rear, you with nothing else are putting approx 42kg on the rear wheel. 10kg load still gives you a big margin, not all that rear weight loads directly onto the rear wheel either.

ATEOTD do what you feel is best for you so you feel assured.

Depends on how heavy your panniers are going to be.  I guess the weight limit on those wheels are circa 90kg?  They'd be difficult to fix by the roadside if you do have problems, so if you're going to make a habit of touring some Open Pros or A19s might be more appropriate:  at least then you'd have no concerns. 

Should be fine. I've toured on Shimano RS10s before now which have an even lower spoke count, and was surprised how bombproof they were. But don't use tyres narrower than 28mm.

I have been camping and touring many times on my Mavic Aksiums on 25mm tyres, no problems at all.  Sorry that my first post was (very) brief, I was just going out of the door when I spotted your post.  Usual cavet, watch the road surfaces, look out for pot holes but other than that I cant see you having any problem.  At under 80kg, by the time you add the weight of you kit I bet there are people heavier than that riding the same wheels without any problems.

I would say you're fine as long as you keep your paniers light. Keep in mind road conditions play a large part not just weight.

Factory built Mavic's are usually pretty robust, I've ridden SSCs from 2001 and I maxed out at 107kg and never had any issues with them so I would think you'll be fine. Dunno what tyres you're using but 28-32mm would be more than adequate for your needs, no need to go wider IMHO.

Have fun.

No problem