Have you considered a Souse Vide? Almost no smell or mess, and its easy to store. Decarb then infuse in the same disposeable bag (or jar, not as good)
Sous Vide immersion cooker $100
Vacuum Sealer and bags $60
A big pot of water you probably have already
They don't get as hot so decarb takes longer but set it forget it. It doesn’t need a lot of babysitting.