hey there,
where are you located? i have an RM50 in great condition modified by the one and only Dave Friedman. He modified the voicing, density and presence and added new JJ EL-34 tubes. I played it only twice so the tubes are like new. I'm willing ot part with it because I already have a Friedman modified RM100 and a few stock RM100 heads and RM4 units.
I will check out how much it all cost me and get back to you with a price asap.
THe amp will be shipped from Montreal, Quebec, Canada.