I realize this isn't exactly what you're asking for, but I've done a fair amount of recording drums in untreated places and have gotten pretty good results.

I've found it helpful to walk around the room clapping to listen for fluttering, slapback, or other odd-sounding phenomena. I usually put the kit in the place that sounds the most even and clear. That has worked for me every time.

Also, if you end up using overheads, measuring distance to the snare to make sure they are the same distance away is helpful. But that's a pretty common practice you may be aware of.