All tube head = 70 lbs
Ampeg 810 = 165 lbs
I would really look into the option mentioned above with the 410 +115 (although the Ampeg 115 never really left me speechless), or 2 410s, or 410 + 210 (most versatile combo IMO). Hell, my Eden 410 is enough for all of the rooms I've played in (granted I'm not filling up arenas, but then I would have roadies and sponsorships for gear). Remember also, that onstage you'll likely be getting PA support so you don't really need a huge rig.
Either way, the Ampeg + Spector is a proven combo. Good choice!

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