Micro trains Kato conversions

I have GP50s and U30Cs that were made in the eighties.I need (UPgray)1157 and 1161 coupler conversions(pilot models).Are these still available anywhere?

MTL is changing to a new numbering system for their products.

The 1157 is now 141010 and the 1161 is now 141030

Walthers has both in stock [:)] (in black so they would have to be painted[:(]).