--yer gonna need to get a set of single-ring binder bolts--your current chainring bolts are too big

--IMO, your best bet is to use the cassette hub. the spacers and cog will give you good chainline adjustability. the only other good option with vertical drops would the white industries eccentric hub--expensive

--so far as I see, you need a rim, spokes, a set of chainring bolts, a cog, and spacers. keep the rear der and use it with the limits locked shouldn't bee too hard to keep it under 100.