Just thought I'd mention that there's another early Hot Cat 100R head up for grabs
on eBone.
http://cgi.ebay.com/BAD-CAT-Hot-Cat-...QQcmdZViewItem
Mine is a Custom Shop Frankenamp, where this slightly newer one was designed
as a 100R from the beginning.
Not sure if it's Tube or Solid State rectifier, but his Buy It Now price is pretty reasonable.
This is an amazing amp giving you the best of a Hiwatt Custom 50 and a Marshall
100 in one box.
The only thing you may want to consider is that this amp head weighs about 65lbs.