Building a Bike not quite but piece by piece

Hi 

I have recently returned from Sydney where I got back into my cycling.  Being here for under 4 weeks I had an accident and my Focus Cayo got written off.  Totally gutted at the drivers here.

I am recovering and secretly looking at bicycles. 

Therefore, in the meantime the only thing I can do is look online and figure what to do with the limited funds.

Gone are the days when I could have time to put it all together.

I was thinking of buying a decent frame, wheelset and groupset from sales and etc in time for me getting back on.

Has anyone had the experience or know of any fitters?  I was thinking of buying everything and giving it to someone to put it all together.

Thoughts and tips appreciated.

I did do a search on forums but there’s alot out there.

thanks