Re: small, lightweight, portable solid-state amps that sound and respond like tube amps:
Check out Henriksen JazzAmps. I know the word jazz is in the name, but they have a few variations on the theme.
I have a 112 ER combo - 160 watts, reverb, 1x12 speaker and a special design tweeter that can be turned off via switch on the back panel.
IMO, this amp is pretty versatile and delivers clear and warm clean tones and can also take selected OD pedals (I like the Zendrive and a Keely modded TubeScreamer in front of it). Each guitar that I've used with it retains it's unique tonality - Strats sound like Strats, semi-hollow bodies sound like semi-hollow-bodies, etc. and large hollow-body jazz boxes sound amazing.
I've even used this amp for acoustic guitars (tweeter helps these), electric bass (Ric, Stu Hamm Urge and the treble PU on my Alembic Series II) and also for my Rob Allen acoustic bass.
Re: small tube-powered amps - over the weekend, I scored a used Dr. Z Carmen Gia head and over-sized closed-back cab with 12 alnico cream-back speaker. Haven't tried it with a band, but it sounded great in my practice room with a variety of guitars.
And - as far as a clean platform for pedals, IMO, it's hard to beat the new PRS Archon 25 and 50 watt 1x12 combos. They have 1/2 power switches and FX loops. The gain channel is a bit over the top for my taste, but the clean channel has an amazing amount of headroom, which is perfect for pedals.
BTW: those tie-dye speaker cabs are awesome, Bill.