Looking at the parts breakdown for the Lionel version: https://www.lionelsupport.com/...c6-94c2-2ca8b3baee31
It looks like the worms have the correct pitch. The bearings are wrong but can be changed. One word of caution: you'll want someone who knows how to set up the worms to verify they are correct/make any changes if necessary, otherwise you run the risk of stripping out the worm wheels on the axles. You can probably order the flywheel, motor, and dog bones from that Lionel S1 and be ok. You'll just need to add tach tape to the Lionel flywheel which is no big deal.
