Trying to improve the dogmeat precon on a budget.... Is it even worth improving?

UB conversation aside, I really like the art on the fallout cards. For my birthday this last year, my brother got me the dogmeat deck as an intro to commander in general. However, in play it's kind of not very good. So, I'm wondering if anyone has had success upgrading this deck on a budget (less than 50$ if I can help it) and at least putting up a good fight if not winning with it regularly?

To be clear, I've looked at many decklists and an improvement article on card kingdom, but some of the cards are like individually 15+ at my LCS. That's a bit too much to spend right now for me personally.