Help me decide my buildoff tractor

So i am making this thread because ive gotta figure what im gonna build for this build off and i cant decide. Ive got 3 options one tractor might have to go for a while so ive gotta figured out which one im building. I need to hear some feedback to consider my build.
Tractor A. Murray widebody LT 6spd
Very clean specimen and overall a very CLEAN tractor one major issue is the transaxle may be junk and ive gotta figure out a new belt and routing due to a pully swap. And i would be fully rebuilding it from the ground up its stock at the moment. I could possibly swap the 15.5 out for something beefyer. But i dont have a spare mst for it with the longer shift shaft

Tractor B. Craftsman LT? 5spd
Currently has a 20hp briggs oppy and it runs and moves but is in need of a full tear down and redo but wont be as exiting as the murray imo.
Tractor C. MTD 6spd swap with 708cc predator vtwin
And ive got my second ever tractor and ive half completed the transaxle swap and the motor doesnt run and its got almost nothing finished yet. Thanks in advance you guys i cant decide myself i figured i needed reasoning

If you have another mst, I think you can swap the shift shank?  I'm guessing no mst?  Craftsman... it can be as exciting as you want!  That is up to you!   

I’m confused. Does the Craftsman have an MST transmission? That sure sounds interesting with the big engine.
Can’t you make option 1 work with the shift shaft that is in it?
What transmission is in option C? 6 speed what?

Build them all!

Im gonna build them all but one is going to be a dedicated buildoff i can swap parts from the murray mst but i dont have an identical spare axle for it. The craftsman is a 5speed peerless of sorts and the other "tractor c" is a 6speed peerless swapped MTD yard machines with a predator vtwin

Of course I say build the Murray, but honestly, if you're gonna put the money into it and build it right, I think that MTD speed build would be sick!

Yea the MTD was gonna be a cruising round town rig that i could drive outside of town at decently high speeds i kinda still want it to be offroadable too. If i can hunt down a starter i will build it i think

you might try https://www.gopowersports.com/ they might have the starter you are looking for if they do i would go with number C

So it seems tractor c is gonna be my build my freinds also agree i just need a starter now

Bravo!