I've been kicking around the idea of building a booth like this for priming, but I keep coming back to the fact that every time I've primed so far, I end up running around the table to spray things from different directions, as opposed to moving the parts. I have a PVC frame with plastic mesh over it that I lay on sawhorses (and sheets of plastic over the garage floor). With the HVLP gun, the overspray is minimal. I use Ekoprime, and the smell doesn't linger at all.
For those of you with booths, do you tend to hang parts so you can hit them from different sides easily at once, or do you just have to wait for things to dry a bit so you can turn them around, then flip, etc?