If that's the only issue, I think you would struggle to find a machine which wouldn't fit in through the door, as all bandsaws are quite narrow when the table is taken off,
which you would be doing anyway.
Not checked mine, a 24" machine, but would say the base is about 20" which I think is the widest point, and at the motor, but nothing that is too large to get through a normal door.
As you can see a 20" modern far eastern I had, which has a small table....
has practically the same footprint as a smaller machine which is just a curve cutter
or for use freehand sawing to the line, as you can't really use the fence for anything more than an inch thick stock with a wee saw like below.
I think a machine which can reliably use the fence, instead of freehanding to a line is worth looking for.
You need a decent blade to resist deflection, (beam tension) and that requires a decent tensioning system and frame to tension any sort of blade which will be any sort of comparison compared to say a tablesaw which might be a big consideration should one decide to go that direction.
Something 200kg or as close to it at the very least, is what I'd be looking for, light enough to shift about the place easily.
One can move a machine about like this simply, as they can be pivoted easier compared to something which is half the weight and heavy everywhere.
With table off, one can pivot the column onto the floor with one hand.
Someone was worried about this before on another forum, and I was working on my machine at the time, so I made an unplanned amusing video of me lugging my 24" around, before doing things the easy way, which could have been made much easier starting with a thicker chock than pictured, lifting the frame 4 or 5" under the guide side of the machine before walking around and tilting back the column.
Some pipe can be utilized for a standing machine, although I'd not chance that should you want a machine with a larger table, or compact and on a bad floor,
and if transporting when horizontal a dolly is essential to move it like that.
Regardless what machine you go looking at, you will be glad to have a fence post or whatever, at the very least to clear wires for switches, getting your hands under
and not getting fingers pinched.
Kicking a chock under the base, woulda been easier to get tilted, if I started with a thicker block of timber under the other end, as I'm quite short.
Fair enough, there's no wheel or shaft, no guide's, guide post and guard,
but I can tell ya the smaller 20" machine I had before, was no bother to get back on the trailer when it was (bar table) assembeled.
Only gets a bit heavy beyond 45 degrees, but nothing that requires two people.
I could still use a single hand to lower that down to the floor, .as its balanced.
Only a few kgs, no mad effort needed if your lugging it right.
