if you decide to sell, I would buy and pay shipping.
I've got a 1970 Sonic 1/200S for sale if you're interested. I made some mods to it such as larger value, series connected caps in the power supply for today's higher wall voltages, tip pin jacks on the back so the bias can be set without pulling the chassis, it has an IEC plug on the back instead of the attached cord, and the panel was completely sun bleached so I had some labelling done so it is a 200S now...same amp as a Sonic 1 though for 1970. I use it for bass and it is completely overhauled and in rock solid condition with good JJ KT88's (blue glass), a Weber WZ34 Copper Cap rectifier and good 12AX7 and 6AN8A. The cosmetics are in very nice shape too. I'm looking for $500 or best offer plus shipping. If you're interested, send me a PM.
Thanks,
Greg