Has the breeder of the filly bred the mare before? If so, what do those offspring look like? F1 draft crosses are a crapshoot for sure.
I got my silver medal on mine, but I fully acknowledge I got super lucky with him and was not my plan when I bought him as basically feral, 6 rides total 4yo.
I like the filly better than the colt based on the videos, but I don’t really like the video presentations on either of them. In general, I’d expect the resale on a GRP to be better than a draft cross, but she’s not necessarily your average draft cross if you go through the hassle of getting her KWPN approved. Let’s not forget that she is a George Clooney (DeNiro) offspring.
Whether one of these is the proper choice for you is partially a matter of whether you want to ride and show into a upper level, and how competitive you would like to be, either locally or regionally. You said that you are pretty much priced out of your area’s breeders, and in my experience that usually trickles down to the quality of horses in the show ring in the area.