actualy, seeing the size of the inside of the herc (as an example) it is huge and the possibility of hallways, ect is fully possible
i spose i could try an flat-ish cap ship (aten?) and give it a go
also, we do NOT have access to the full 128 meters, without a world modifier we only have about 60
edit: having just measured the aten, it should only be about 50 tall and as such a 1:1 scale should fit if i can find a 260x150 flat area
edit2: "- but the bonuses of size/scale are kinda lost on it-" not when you figure you only have access to 1m cubes... you lose a LOT of detail making a 20m fighter 1:1