For tripods, I definitely advocate for buying used name brand gear. You can get very good equipment that way without paying the crazy prices of top range stuff brand new. That said, there is excellent knockoff stuff these days for very good prices (such as arctise or innorel), and that's also a very viable way to go. I also agree with @ramseybuckeye that Arca compatible is probably the right choice.
Remember that the head you get is at least as important as the tripod legs: I would probably budget about the same amount for both items. Also I suggest you do everything you can to stretch your budget as far as you can, and find the best deal that you can, for the support gear purchase. It will probably last a lifetime, and be useful with any lens or camera body you buy for your whole photography 'career,' so it's surely worth getting the best you are able.
The macro lens shouldn't require as much of an investment, as almost all macro lenses have been terrific for a long time (excluding zoom lenses with "macro" modes, which are much more hit or miss, and are rarely if ever true 1:1 macro lenses).
Here's a (not necessarily exhaustive) list of some good macro lenses that shouldn't break the bank (buying used):
Pentax 50 Pentax 100 Sigma 50 Sigma 105 Vivitar/Tokina 90 Vivitar/Lester Dine 105 Tamron 90 Sigma 70 (maybe a bit more than the others)
Some of these have several different versions available.
I believe you can get a good copy of any of those (except probably the 70) for under $200.
If you're more comfortable with new, there's:
Pentax 35 Limited Pentax 50 Pentax 100 Pentax 100 WR Samyang/Rokinon 100 Venus Laowa 60 Venus Laowa 100 Irix 150
I think some version of a Pentax 100mm is probably a great choice, but it would probably be hard to go wrong with any of the lenses I listed, and there are certainly even more options than those (such as older manual focus lenses).