Hello,
1. Norwood 5, maybe heading towards a 6 depending on your family history.
2. You have a decent amount of thinning on the sides and the vertex bald spot is fairly low. I think if they get 3,000 from the donor area at once that would be impressive, they would need to stay fairly narrow in the back to avoid the thinning vertex or retrograde alopecia. Definitely do two procedures, maybe 2,500-3,000 grafts at a time. In the mean time you should be on finasteride oral and minoxidil oral (or topical) as your doctor sees fit, maybe you can recover some of the thinning. Microneedling once a week wouldn't hurt (1.5mm depth).
While it would be super great to get 4-5K grafts at a time you need to consider:
Grafts don't live forever outside of the scalp and need to be implanted relatively soon, the timing depends on the holding solution they use
Planting grafts too close together runs the risk of compromising the blood supply and losing some grafts
Because of this, it's likely better to do two reasonably sized procedures (2,500) than one MEGA procedure. I'm curious to see what others think.