the d30 could be worth it. i'm planning on doing the d30 swap. i'm working on the build stuff now... early stages of it. it's stronger than the 28, and as strong as the d35 if you have the larger u-joint axle shafts. main downfall is the minus of the lock outs...
but, it'll hold the 33's or 35's that i plan to run. a lot of jeepers run them w/ minimal breakage-- depends on how you drive of course. but this thread is not about d35 vs d30.. there are a lot of those on here. and i still plan on doing the sas for a number of reason. 1- i'm tired of ttb and trying to set it up properly (is effective if set up right, i'm not saying its not). 2. part of msj- i'll have spare parts in the parts trailer. 3. i can get the d30 stuff used- cheaply. its hard to find ttb stuff around here other than JY. 4. i want to! its my rig... i've seen the d30 preform a lot... seen what people do on 35's to 37's and not break.
if you can do the swap yourself you can do it w/ long arms. and the price of the arms are the most expensive thing.. besides, its your rig, what do you want?
d35 is bolt in.. but my d35 was stripped by some dang thieves... and i'd have to have skyjacker brackets (b/c my rough country lift uses a drop plate), jeep coils (need either way), gears (either axle needs), and rebuilt (either way). so it comes out to about the same for me.. but i want sas'ed