Slow build 71 Scamp 440

Ok I have identified my 727 as PK4028418
76-77 model. Also I’ve included the tail housing number. (Photo)
I’m not sure what it was in but I’m hoping it will work in my application.
I bought a yoke some time back but it doesn’t seem to work. It’s keyed where as the transmission appears not to be.
I’ve added the photos of the yoke numbers.
Anyone have any ideas on the yoke and what this transmission came out of?
I want to make sure this is going to work in the Scamp (bolt up) before I start to dig into it and order parts from CRT

Thanks

PK4028418 - 5424 - 5627