Alright, I don't want to seem like an asshat here, and I am not claiming to be an expert of some sort, but what do I think? I think it seems a bit puzzling that you have enough insight to know that you want to run a modeling preamp and separate power amp, but have absolutely no idea what cabinet you want to run.
I have to wonder how clear of an understanding you have of what's in front of you. Questioning whether a 410 cabinet wouldn't be "too loud" definitely adds to my concern.
You seem to start off with fairly basic needs, and basic needs can be addressed by basic solutions. I'd think basic solutions here would be a head (amp) and cabinet or a combo unit.
Since your only stated goal is being loud enough to play with padded drums, you start with your options are wide open (I don't consider wanting it to sound good a goal, since I don't expect anyone to really be looking for a cabinet that doesn't sound good).
With your only constraint parameter for the cabinet being price, you essentially have the whole universe of cabinets under $400 open to you.
Popular opinion is tending toward the suggestion that a 2x10 or 1x12 configuration would be your minimum. So really, any 2x10, 1x12, 1x15, 2x12, 4x10, 6x10, 8x10, 2x15, 1x18 (or other conceivable > 1x12 or 2x10 config) that's under $400 could be in the running. Including new and used options, the list is probably almost endless.
So, other than staying under $400, what are you trying to do?
Does the weight/size matter? Are you moving it from home to rehearsal twice a week or is it going to mostly stay put (I don't know that home and rehearsal aren't the same place)? Do you have a really small car?
Do you have a strong preference between new and used? For buying locally or online? Is there a limited market nearby?
And btw, I don't know how you got too far into looking at Acme, their 2x10 is $600.