Let's see, I started with an .22 AAS510 and Huma regulated it. It's still one of my favorites. light and just feels natural in my hands. I've cut the tune back so I can compete in field target events.
Then I got a .25 Streamline. Like it too, but it doesn't feel as good in my hands. Nice rifle though, laser accurate. Zero issues w/ it.
Then came a little .177 pistol, the PP700S-A. It spent more of it's life being modded than in my hands. I've finally got it back and it's fun, but anything beyond 10m and the red dot doesn't work very well for me. I had LASIC so all I see is a big star. Maybe a scope in it's future.
Then came the Impact in .30. This is by far the most fun gun I own. Yea, it was expensive, but it's a barrel of fun and is laser accurate. Even got 2x of the side shot magazines and one one fill it's good for two mags. IDK how it'd travel in the woods, it's pretty heavy compared to the AAS510, but I suppose I'd carry it anyway just because it's such a good shooter.
I would get friendly with your local SCUBA shop and not worry about a compressor at this time. You can pick up a steel tank which will do 3500psi or spend some bucks and get a CF tank which hold 4500. The CF tank is my next investment as the Impact is quite a thirsty little beastie.
So, to answer your question directly, I would get an Impact and a CF bottle. You might choose to do it differently though and pickup the AAS510 or a Streamline and a steel SCUBA tank. You'll still have spent $2k by the time you have it outfitted with scope and fill system. An Impact it's accessories and a CF tank and fill system is probably well north of $3k
