I would love to have an Ampzilla from GAS, it was a Jim Bongiorno design. One of most musical amps to come out of the late 70's IMHO. Also an Amber model 70 is on my amp bucket list.
I want one of those for my collection also.
The problem is they go for SERIOUS money (for me anyway)
I would be happy with a dead one. About half of the amps in my collection don't work anyway-----
But they are great memories for people that visit me