i have been given a ss frame and fancy building it up for a cx type bike that i can ride to work with the odd off road excusion!! thing is i have no idea about what is the best set up so any advice on chain ring size and where to get the best deal on stuff etc. so far i have singular day one frame, hope bb, sadle and seat post, wheels (but not ss so need a convertion kit)
any help apreciated.

so far i have singular day one frame

a what? is that a singular crossed with a genesis?

ah!! you are of course quite right…..genesis not singular (red face) still need some help mind and now you can see why???

if it,s 26 inch 32 front, 16 rear
any 2-1 combo will work, ie 36/18 etc, this is a good starting point,
also use a half link chain as you get better adjustment with it.