Lift

Fellow taco owners. I have a few questions. Let me start off with my current setup and see if you fine people can help me out. I have an 07 access cab, 4cylinder 5 lug 2wd with fatbobs level kit, 31x10.5x15 with procomp series 51 rims and 1.5" spacers. I would love some more lift, but ive only found a slim number of companies who offer a large lift kit for an outrageous amount of money.

I noticed on a large variety of vehicles, the leaf springs are mounted ontop pf the rear axle, where mine are mounted under. My question is, has anybody reversed this? If so how much work/modification was needed? Does anyone have a more cost efficient way of getting some actual lift on these trucks or am I sol? Thanks in advance Tacoma world, stay classy.