No.
I started with a mk35mm ... and wanted to try the additional reticles in the mk3 ... so I paid the $1k to upgrade. It was the same unit with the annoying habit of telling me to nuc. When I don't need to be told

And the new reticles were not as good as the old ones.
A year later I upgraded to the 60mm Mk3 and that was worth it ... BUT I was worried about the loss of FOV, so I got the Patrol to cover the close in situations around the coop.
Doing it in 2 steps did mean my outlay in any given year was lower, but the total cost was higher. So if I had it to do over again and I was willing to give up the FOV to get the extra magnification, then I'd do the 60mm upgrade in one step.
The ONLY benefit of going with the mk3 upgrade might be to improve resale in the long run. But I doubt you'll get the $1k back. And I think (and hope) there are enough people out there that understand the mk2 is really the same scope as the mk3 (speaking 35mm here) that it still has value.
Anyway, in summary, having gone that route, I would not do it again and don't recommend it.
