I'm also thinking about getting the Mesa Subway amp head now that I've been looking at the Mesa gear lol.... and my local shops carry it as well.
Big +1 for a Mesa Subway head!
For almost a year now (yes sir, we've been playing jobs almost all the way through the "down time") I've been driving my Avatar 210 Neo cabinets with a Mesa D-800+ head with GREAT results!
Try the Subway cabs first, see if their sound is for "your" ears and wallet.
I've done in store auditions of the Subway 112, 115, and 212.
REALLY liked the 212, the others not so much.
"My ears" thought my two, Avatar 210's stacked as a vertical 410 covered alot more ground.
The Avatar Neo 210 cabs I have come in at 42 lbs. each and 16" in depth, the Subways are 18+" in depth.
I'm relatively small in stature and that extra 2+" in cabinet depth make moving a PIA for me.