The Artisan 3 e might be in your range then. You may want to call them and talk to him on the phone personally to work out the details and maybe get a bit of a break on it, you never know!
I have found that we all tend to start small, and eventually want more, bigger, badder, meaner etc etc. The A3 will do just that. It looks like it will let you easily roast a half pound roast if you want, up to 3 lbs or more per batch as your needs / demands grow.
Trust me, right now you are roasting for you and wifey pooh, but once word gets out, the kids will want coffee, the friends will want coffee, the church will start mooching you for coffee etc etc. you get the idea
Welcome to the rabbit hole!
Aaron