I just doubled up on the gorillamaxx straps, couldnt find anything with the right type of mounting style, and inner tube idea came along after I had already done the order.
Use the 8 spider diffs since you have 'em, but the 6 spiders work fine for me as it is.
Use the GA bulks, I dont like the idea of bulks with that much material removed, even if they are HCR and not the Integy crappy copies.
Low profile towers and revo lenght shocks has been done before, works remarkably well, but suspension travel is obviously limited- great for onroad or fairly light duty off roading me thinks.