You wouldn’t go wrong with an
You wouldn’t go wrong with an Enigma, although you may be pushing your budget.
A Van Nicholas Yukon might suitvannicholas.com:80/WbmBikeHome.aspx or one of their Amazon’s vannicholas.com:80/WbmBikeHome.aspx the former is probably closer to race geometry – although I think the problem you’ll have is that you are unlikely to find a race bike with full braze-ons for guard – it’s more likely to be something set-up for fast Audax.
Mind you, with your budget you could try a frame builder – what about Argos? Sounds like they would be local to you. Or you might be able to get something off the peg but customisable – again in steel (think your best chance of finding anything is in steel or ti) might be worth checking out Condor’s website.