Evening all, again. ( "yet another post" I hear you say, lol)

This time I'm on the lookout for any serviceable Mk2 Airsporter parts that are missing from what I have here. ( it's this gun that brought about all the other projects I have but sods law states that the one I wanted is the least complete of the lot by a looooong way.)

https://imgur.com/a/fRdUq

Quite a lot really but I'm not trying to build a shelf queen, just a useable rifle so no need for them to be mint. I've gone thru knibbs and chambers lists and totalling it up it's not economical ( nor possible with current stock) to achieve my aim so turning to you guys to see if any parts are out there spare.
Any loading tap parts and cocking link bits are the main issues atm but if anyone has any parts and a couple of minutes to see what's missing from the pics I'd be very grateful.

TIA