Just picked up a hw35.

Stock is a little flakey and scratched but no wood damage. Action looks ok, few speckles that will probably clean up, underside of barrel has a bit of rust. Looks like its never been apart, screw heads are perfect. Looks like its never had a scope mounted but has an arrestor block. Single sided safety, .177, serial number775350. hoots really nice!!!! but only running at 7.7. Breach seal looks old, worn and leather though.
Missing front sight.

What would you say its worth?
Age?
I assume this will have a leather piston seal, do they wear?
What does the front sight look like? Anyone got one?

Im wondering what to do with the stock. I guess its beech. If i strip it and re-finish (needs it really) what would you finish it with? I did a mk1 airsporter in danish oil and it looks fantastic but will the beech stock come out too light?

Only owned it about an hour and a quater and an hour of that was driving home with it, but i love it already, nicest rifle ive owned