A few years ago i managed to buy both 124 & 127 mk2's. The 124 is in excellent original condition, it came with a Kassnar period 3-9x40 wa (tv screen), 2 pc mounts, canvass bag, sling & a couple of tins of pellets.
The 127 is Venom tuned (basic tune) sticker in place on Slimtech, good used condition with a few light marks, this one came with a Tasco 1.75-5x40, 1 pc mount, sling & bag. Lovely and smooth to shoot. Both are circa 1981.

124 was £300 127 was £350 hope this helps. Tony