That's exactly my running gear... It is pretty straight forward, but little things like the slave cylinder mount will give ya fits.
I'm also using a stock Blazer crossmember, cutdown and braced...
My rear diff is a cruiser/minitruck hybrid.. centered cruiser 3rd, cruiser axle tubes (part of them sleeved over minitruck tubes), minitruck outers, with GM disc brakes.. no c-clips.
The driveshafts are easy... keep the toyota flange on the diffs, with the male end of the splines.. get the other end made to go to the NP205 u-joints, and you can carry a spare cruiser flange with slip yokes, for a 5 minute trail fix...
I'm running el-cheapo Summit blockhugger headers, with Saginaw steering.
Oh, better upgrade the radiator!