I have no monetary interest in Home Depot but they have a new mini shop vac that attaches to any 5 gallon bucket.
It's only $19.95 and works well to remove ash from my XL as the hose fits right into the draft door. The hose doesen't quite fit into my SM egg and not sure about the other sizes.
But if you use a shop vac to remove your ash this is a lot smaller unit. Oh and it has a blower on it as well.
Hope this helps.