Sounds like you have plenty of gear bro. I've competed without tren. In fact, I think that was one of my leanest, hardest showings. Tren is great, but you can do just fine without it. Of course, with or without tren, its all about the diet. And I have used GP Mast 200. Solid product. I was a big fan. It's a blend between the short and long acting form of masteron. I would break your injects down into an EOD schedule, starting at 8 wks out. As for your Sust, I've seen different guys have different reactions. Some guys, like myself, don't hold a ton of fluid, while others bloat up like crazy. If you bloat badly, I would reduce the dose at 6 wks out. If you are taking 2cc wk, I would try reducing it to 1cc at that point. I would also run a healthy dose of AI through the cycle, and really crank it up toward to the end
Running the provion will help too. I would run that for as long as you can, leading into the show, taking 50mg ED. Anavar, 50mg ED 6-8 wks out.
You may find that HGH causes fluid retention. If so, you may want to cut that out between 1-2 wks out. I find I can stay on it, and it helps me look full. Some guys aren't as lucky though