Are you looking at taking something TO a BOP, or are you setting one up?
If you're setting one up, and you want to give an authentic "brewmaster" feel, I'd go with 1/2 or 1 bbl turnkey pilot system (or two or three if the demand is there). There are the Grainfather and BIAB type models, as well as RIMS/HERMS ones. Blichmann, Spike, and SS Brewtech all have models in the range. There are also more commercial-oriented companies like Stout that kind of specialize in pilot systems.
That'll be on the pricier side though. But there's also a massive influx of cheap Chinese turnkey options.
Most BOP places use extract though (and could charge an upcharge to hand you a braided cooler mash tun), which makes it a lot simpler but really takes away the "brewmaster" feel you want.
Could also have larger collective hot liquor tank, a single fancier mash system and multiple kettles. Would allow for multiple batches at time, especially if most are extract.
I will say though, I haven't seen a BOP place survive too long, at least not without being something else first (homebrew shop plus BOP, commercial brewery plus BOP, etc).