AAs400 that has a great FT stock and been tuned for less than the price of a new AAs500. It was listed not long ago and the seller is a great guy you can trust. You do want a single shot version for FT.. the AA400 or AA500 are single shot versions... the 410 and 510 are 10 shot magazines and not as good for FT, but acceptable if you want to hunt with them too.
I have a Falcon single shot that is like the Air Arms you can try before you buy too.
Again, welcome to the sport! here is the link to that AAS400 with great FT stock