Stop in for a cup of coffee

Was the transmission functioning when you did the rebuild? Some of the troubleshooting guides indicate a possible rear pump failure so I'm not whether finding parts is possible versus the rebuild kit which seems to be a seals and bearing kinda deal.
I just did it cause I had it out and apart to replace the rooster comb. If you’re gonna have it professionally rebuilt, I’d highly recommend finding a shop that is well versed in the push buttons. They are a different beast all together. A lot of shops won’t touch them