On the P-07/09, I don't believe you can retain the existing rear sight dovetail, because they need that space to mill for the RDS. I believe they are able to mill a new dovetail in front of the RDS that uses a different sight; or possibly behind the optic if you use a smaller optic like a JPoint or Shield.
Best to double-check with Primary on those options, but that's what their website indicates. CZ Custom, CGW and others may have various BUIS combos as well, but you should plan on spending more $ for these options.
I was pleased that the stock SR tall tritium front iron, and the rear markings on Venom provide adequate co-witness BUIS, IMO. Other Forum members have said you can get similar results with rear 'guide mark' on a Burris FF3. This saved me a bunch of $$ in extra cost of sights and dovetail milling; and I'm really pleased with this combination 'package deal' all-in <$395 including milling, 6moa Venom, Cerakote, shipping to and from, and insurance. YMMV