You can't fault what works mate
The 100 and Airmax Combo is a good pairing
From your previous posts, I was expecting to see a proper retro 80s scope and mounts on that 77 - maybe something in gloss black with a TV style view
The mounts you've got on there at the moment are definitely BKLs - there's nothing wrong with that, they're top class mounts, if a little out of place on such a nice classic (in my humble opinion)
by the way, good shooting again mate.