good Luck with optaining them... hopefully the owner will sell them at a good price. salvaging telecom equipment is fun. I did it last year and got quite a haul, but trying to resell the unit, a ITT 501A I got no takers because the unit has to be picked up in person. so, I wound up adding a 212KTU to the unit and still have to rewire the unit.... if I get it done this year, it might just be up for sale.... will keep everone informed.... anyway the unit looks great and good luck getting the switchboards.