If you’re not sure what your tripod options are, then check out OutbackPhoto’s field report on the subject. I use a Gitzo G2228, which looks similar to the Explorer shown on the site, but I use a Manfrotto 555B offset center column, which puts what I’d call a half ballhead below the tripod head, which makes it a breeze to level the head. I also use the RRS BH55 ballhead they mention on the site.