I've never played or carried one but how about 72 pounds of all-in-one Vibro-King Custom? 60 watts, FAT switch, Custom Shop PTP, 63 Tube Reverb and Trem: MSRP $5 Gorilla's.
It's supposed to be a desert island amp akin to having a handwired 59 Bassman with a 63 Reverb and trem to boot. Assuming that FAT switch will get you low volume crunch and you have the cash and back, this may be it.