You just wasted 100 bucks on putting those final drive gears in. All those parts go with the A/T, why would you waste your money on a new transmission, NO ONE around here will do that I promise, you'll have to look ULTRA hard to find someone experience enough to do that. Don't waste your money now Matt, save up and buy a turbo kit. That’s a lot but don't waste your cash on a M/T. Not worth it in my honest opinion.
But hey if you still want it, more power to you.

-Chip