Start collecting 2x12 cabs if you want a haulable rig of your own. At 8Ohms you will give yourself options to mix&match.
The boss ls-2 is great for splitting a signal, combining different effects chains, etc.
The BDi21/VXL/sansamp are great at a natural driven tone with a little edge. M80 is a very useful unit but I tested it against the ZVEX Distortron which retains more melodic tone in the dirt, and doesn't kill lows if you don't want it to.
You may get a lot of use out of an octaver in the setup you are describing.
Whrn building your sound before the amp you only need to make it louder. I'd recommend a nice clean amp, no need to schlep a 70lb tube monstrosity unless you're dead set on one.
Have some play days at local music stores, try what's out there these days. Leave your wallet at home 😉