Sanity Check: 15-Year-Sat 904 Swap Plan to Get Me to MoParty

I’ve also got the converter from that new transmission - am dumping my existing one - will clean and flush this replacement one out. Car’s still at the shop following the inspection, but there were big pieces of clutch in old trans and I had no third gear.
Then I definitely wouldn't use the converter from that trans no matter how much "flushing" you think you did