Parting-out RD112 Sixty-Five

This is/was a great amp. (very good condition) The transformer started to go out on me. I bought a replacement, but now it has a strange high-pitch feedback. It's starting to get too expensive to maintain, so I am giving up. I'm sure someone could get it to work, just not me. I'd love to sell it whole for $300, but at this point, I've been told it might be worth more as parts. Anyone need anything?

Hello,do you have the casters available ?