Looking at the details, the base plate from the PE tender is a similar size to the die-cast 6-wheel tender on the MPC loco. They are probably interchangeable... and the die-cast tender is a large shell which would have had an air whistle in its original incarnation.
The 6-wheel trucks have brackets on them for rollers.
So, there is a probable solution involving combining parts from the two. Another possible solution is drilling the 6-wheel base plate and fitting the air whistle and rollers from another donor tender.
Right now the K Line Hudson is off having its electrics upgraded. The MPC one would be a good “club running day” loco, with a silent tender so I’ll shelve the project until the K Line returns.
