Now I'm not saying you should make another tank. But I am saying that you
could. There's 3 months to go on this build and IF you're not happy then make another one, don't settle. Minwax makes a very nice blue stain, water based that looks like paint straight out of the can, but thinned looks great, allowing the wood grain to show thru. I've used it on furniture it's pretty good, better yet, there are also alcohol based stain powders you mix yourself. Lay on the stain once, fine sand it, and stain it again it will show the grain fantastic. Reranch is the brand I used. Their website is good, links to application videos and tutorials etc.
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I recently found a nice red Spaceliner. I've always wanted one. Weird the painted ones are lower ended models and are painted right over the chrome, seems like it'd be more expensive to paint the low end ones (unless of course they were painting the flawed chrome ones...) I like what you've got going.
Carl.