Re: what bassman for guitar
I was lucky enough to play two side by side once at a shop with the matching cabs--if I'da had $3 grand it woulda been gone and I probably wouldn't be on this forum asking about other amps.
The blonde is sorta halfway between the blackface and the tweed--it's still got some mid grind to it and breaks up more, but has more lows and highs than the tweed. The presence knob is a cool thing to have, too.
The aa864 is one of the holy grail blackface amps, so that's pretty much what you can expect.
The bass channel on the BF was a little more usable, but if I had the money and came across either I'd snatch it up in a heartbeat, they're both great guitar amps.