I roast every 10 days, and using a cr1010 from Nesco ( no longer available),
A SR 540 and the behmore. I mostly use the nesco and the Fresh Roast cr540.
In all, I do 10 - 1/4lb batches. Something with a larger capacity and home made would be my.
Due to the electric circuit capacity in my garage, I can only run one roaster at a time, so I’m roasting for up to 3 hours each session. If I could do all in about 3 batch’s, it would be a huge time savings.