G-body initial setup sanity check

[cornfed]

I need to order a driveshaft. First I need to get my suspension geometry somewhat in order. Here's my plan, let me know if I'm on the right track or not. Car has LS1 swap and Currie-trac upper and lower arms. Car is on jackstands until July 15th.

1. level car on stands, verify on frame rails below door using bubble level.
2. set driveline angle to downward 3-4*
3. set pinion angle downward 3-4*
4. verify upper control arms are adjusted at same length by measuring the attachment points.
5. Torque fasteners after adjustments are set
6. get weight of car on suspension with jackstands under rear axles and stands/blocks under front A-arms
7. measure driveshaft (following vendor instructions)

Thanks for bearing with the noob post. I only want to buy one driveshaft.