A little extra money

Ok so i have a little extra money laying around and cant decide which to get, Either a jcr front bumper or a aw4 driveshaft for my rear ( i have the RE hackntap on its way for my birthday, but i dont know what else i would need for the ds conversion).

Since you are using a RE hack n tap, you can use a front DS in the rear. U joints are the same, just make sure they are in good condition. If they aren't, spend some of that $$$, and put in new u joints.

That leaves you with your other option.