The Artisan, comes with a smoke removal system? I guess you could call it if you want. Basically it's a hood with a fan to suck the smoke off the top of the roaster. Indoors you'd need to pipe it like you do your dryer and blow it outside. Maybe there is a way you could cut into your dryer vent and use the same opening, but just not at the same time the dryer is running.
To be honest, if you can get it into the same room as the dryer, since the Artisan is all electric, and the smaller one uses less amps, you could probably get away with putting a like cord on it and plugging it right in there to the dryer plug too to power it and it's fan.
They will roast a bit more than their 'rating' for example I have done 7 lbs in my 5 lb unit, but you have to be very mindful, the beans expand, and depending on the bean may start running out of room for them towards the end so have to fine tweak the loft to keep from launching them if you overstuff on a roast. Otherwise it has plenty of power to do what you need as well.
Another Rednecky way of doing stuff, (this is my forte here
) Roast in the room with the dryer, close the door, but turn dryer on while roasting, with a piece of paper or something to trigger the door switch. The dryer will suck the smoke out of the room, shut door keeps smoke relatively in that room only. Ive done this with my Behmor in the past before I got disgusted with B's in general and stopped using them.
The professional way, you use a dryer vent type hose to bring it outside, and plenty of improvisation if you want to experiment.
If you have any questions about the unit or anything, please feel free to post here or PM me. I own an Artisan 6, which is the bigger unit and love it.
If you do get one of their units, could you please put a note that ascholten referred you there.
Also, the thing will do as little as 8 oz of coffee, up to whatever you can shove into it.
Aaron