Hey guys, so I was driving to my hometown this weekend going down the freeway and everything was going well until my 5th gear went out.. Sounded like it just popped into neutral but when I went to put it back into gear I noticed it was still in gear. I had nothing

NO GOOD. So i drove it to the nearest town in 4th gear and buy the time I got there my 2nd gear was like I was pulling the shifter into a sponge. Really weird feeling buy the way! and my 3rd gear was giving off a whining sound..
Anyways.. I NEED A NEW TRANNY! does anyone have/know where I can pick up a tranny for a 91 5sfe 2.2 liter??? Or what other models share a transmission I could mount to mine? because this is the only way my car gets around right now.. lol
Anything you guys can offer would be great!!!