A wise sage that taught me a lot about wrenching on race cars explained why it was a good place to buy tools. If you buy a set of "whatever" and one of them wears out from use, replace it with a really good one from SnapOn. Mac, Craftsman, etc. to . The rest will be good for occasional use.
Go get some Glad Press and Seal. Remove the cap and clean the lid and bottle top. Cut a small piece of the Press and Seal and cover the opening. Screw the cap back on. You'll never have a problem with stuck lids again.
Everyone has an opinion on airbrushes. I started with a Badger Patrior 105. Retails for over $100 but I got it for $45. I figured it must be THE airbrush for me. I had moderate success with it. After much reading I bought a Paasche H siphon feed and love it. Simple, easy to clean and inexpensive and works great.