I need help choosing a tripod. New or used doesnt matter to me. And a budget of $350 MAX.
If you are o.k. with a used tripod, you can save the first 75% of the cost of new. (approximately)
Some years ago I bought a set of Gitzo legs that, while heavy, will hold my weight. I use another brand of ball head because I have it, and don't need a Gitzo head just now. I seem to recall that I paid around $250 for the set (with no head).
I have three tripods and heads, each of a different category, and each for a different type of use. My heavy unit pretty much stays in the house. My intermediate set is one that I sometimes take out, and my lightweight unit is one that fits inside one gadget bag, so I can carry it wherever and it is usually with me to use in a pinch.
Some lows are reversible, meaning that the head attaches to the bottom end of the central tube. Don't forget to consider the extended height, particularly if you are tall. Bending over to peer through the viewfinder can become rather tiring after a few hours.
It is often said that tripods come with three main qualities; sturdy, lightweight, and inexpensive. You may choose only two of those. With your stated budget, I recommend that you shop for a used good quality tripod with the type of head you want. (ball or pan) No sense in getting the wrong head and then not having enough money to get the one you really wanted.
You should be able to find a really good used tripod in your budget. Take your time, shop around, and pay attention to the condition of the available choices.
If you work down to two or three choices, post a link on here to get another opinion.