I hear you, brother. Couple things you can do to make it easier at the start. Buy a jig for drilling holes in pipe a (and use it), cover the stainless with fiberglass tape and then double stick tape (also known as Seamstick). The fiberglass tape will make the Seamstick easy to remove...that way you can position things multiple times before you mark for drilling. Use stainless fasteners...even the cheap stainless will help with the dissimilar metal issue. Do one section, snap it into place and then do another. It gets easier...