axles are a good purchase.

any anti-wheel hop "kit" is a waste of money. none of them work. and that BMR pinion brace will just snap the nose off of your diff. do not buy that.

do motor mounts, trans mount, rear diff bushing, and rear cradle bushings from creative steel. then get a new master cylinder that a guy named philitine is making as well as the hurst shifter from another guy or a replacement that a guy from "domestic v8 solutions" makes. then do your bolt ons and get a tune. if your driveshaft carrier bearing is going out or gone already (good probability) send your driveshaft to another guy to rebuild it with a poly surround carrier bearing for...$385? not sure on exact price.

after all of that the car will be a completely different animal and the rest of your upgrade path is up to you. a lot more power and you'll be needing a rear end upgrade and you'll probably start noticing that the suspension in stock form isn't able to keep up with how you drive and you'll spend money there, too. it never stops.

if you can keep yourself from throwing parts at it like a wild man you can have yourself a great DD that doesn't need much attention in the end.