Hi
Just as building a model takes time. Building up your tools and supplies and modeling skills takes time.
I started in the hobby about 3 years ago when my job was cut back to 4 days a week because of lost business so i was on a limited budget.
I started off with the basics that u already seem to have. After that I went to the hobby shop 1 time a week and investested a small amount of my wages into my hobby. Either I would buy myself a tool or a couple bottles of paint or any other item i thought i could use. I normally spent about $10 to 20$ a week in this method.
After a year of this I had just about everything I needed to really build outstanding models and while i was gathering all the "nice to have items" i was busy that year horning my skills in basic model building.
The most expensive outlay I had was an Airbrush If you have a Michales Craft store near you search your local papers for the 40% off of any 1 item coupon they always run.. sometimes its 50% off during special sales weeks. The airbrush I picked up there is the Badger 175 Cresendo its normal cost was about $100 and i got it for about $50. you can also get an aircompressor there doing this if you so choose the model they carry.
I am not recommending you go out and buy this exact brush as that is a persoanl choice that you should make after you have learned more about them and can make your own informed choice. just giving you an example that Hobby stores are not the only place to find hobby items.. check out your local craft stores also. esp michales and AC Moore as they both run the 40% off coupons.
anyways after about a year or so of investing in my hobby this way i have everything i really need to make good models with my current skills.
My Model Gallery