Actually, the stainless barrel was one of the reasons I didn't want to go the PSA route. Too much "bling". I don't know what an EPS trigger is, but the MPR has Ruger's "Elite 452" trigger, for whatever that's worth. I also was set on a Ruger lower receiver, so it all worked out in the end.
I may, later on, do a full PSA build, as I'd like to have the experience of putting one of these guns together from scratch. If I decide to do so, I'll let you know. Howell's not all that far from Warren. Thanks for your interest in my "build" (which turned out to be a purchase).