That's the thing, he had it blocked anyway.
Out of interest, I think Mark had mid boost as a push/pull option on one of the knobs, did you perhaps check if this one has that as well?
As far as I can tell a Suhr is every bit as good a guitar as Pensas are. And most likely better than those old Pensa-Suhrs. They are just making many more of them than Pensa is which could affect desirability. But shouldn't. I don't know who plays a Pensa guitar, I've only ever seen an odd Suhr on stages from time to time, not once a Pensa (except of course with MK) and Pensa-Suhrs are probably more collector's items now anyway.
Nothing to me indicates any mid boost and other alternate configurations on these "stock" Suhr guitars, it wasn't present on a Suhr that I played as well. I think these are extremely specific things one can do after the fact or with a custom order, things like reverse polarity, kill switches, mid boost, Floyd Rose to be frank is also an option not everybody needs considering maintenance.
Judging by serial numbers and how active Pensa is on social media, uploading new guitars nearly every day and having multiple guitar builders, it's not like they are so rare after all. I think Marco Caviglia has a Pensa, as well as some guy named Mark Knopfler, and... That's it. So yes, not an impressive list of people, yet a lot of people have a Suhr. Everybody I know plays a Suhr, including JustinGuitar, and nobody owns a Pensa.
Pensas are just so expensive they filter out everybody who thinks about getting it but not buying it even if they can afford it, that's why I said it's mostly a niche professional instrument. Especially if you're just an MK fan dabbling on guitar from time to time. It's like buying a vintage Maserati just because Mark has one. A Suhr, on the other hand, is just a humble Mercedes