Once I get my 40 back on the road and make sure my just rebuilt transmission is good to go, you can have my old H-42 four speed one if you want. One of the bearings was just starting to make a little noise, but otherwise it ran fine. You might be able to swap out the bearing without going inside, depending on which bearing it is. I might even have a good used bearing that would work. How's that for a "decent" (but not perfect) 4-speed transmission? And it fits in your current budget!
Sascha Steinway TLCA # 20217
1977 FJ40 "Ripper" (because it shreads!)
1988 FJ62 "Dino" OME, now in the hands of my daughter
2013 F-150 "Black Ops"