no need to drop the tc.
lift is very easy to install, it was my first lift install as well and did it w/ my dad in about 4 hours. the hardest part is getting the springs back on after you put the spacers in, but it is easy to figure out.
we had a forklift available to use instead of a jack, so that helped out alot, but it is definitly not necessary.
DO get an alignment right after you are done, or you could increase the risk of death wobble, that is the best advice i can give you.
04 Forest Green Sport. 32" Geolander AT-S w/ spidertrax spacers , 2" Skyjacker spacer lift w/ Hydro Shocks, JKS quick discos, RR tube brush guard, 10" Memphis Sub w/ custom box under rear seat, RR seat covers, and a sh** ton of good ole' N. Carolina red clay.