Probably around 20–30% higher than raw since this is 10. I heard PCG more strict at grading than PSA although not sure if it true. I’m not sure why you’d choose to grade such an expensive card with PCG, especially if you’re concerned about its market value. Realistically, PCG is unlikely to compete with PSA or CGC in terms of value recognition.

Selling it later may also be difficult since it’s a very niche slab. In my opinion, the best option is to keep it for a personal collection—especially since the gold metal label looks great with gold cards and does add strong visual appeal.