I'm in the same boat. I bought Firstlite Kanabs (after a lot of research) and asked them if they had any leftover material from warranty pants. Luckily they did and I had a local shop sew the pieces on and they work great. Since then they came out with Tall Sizes. I highly recommend Firstlite they were great to work with. Good luck, good to know I'm not the only one that had this problem.
What is your inseam? I am 6'5 and wear the KUIU Attack pants size 36. These are plenty big enough, they go up to size 40 which, depending on your inseam, should be enough length.
What kind of hunting pants? I guess if you've been hunting in your Wranglers, that part doesn't much matter.
Cabela's has their Microtex pants at 50% off right now. $42.88/pair. For that price you could buy three pair and have enough material to have a seamstress finish out two pair for you. If I needed the regular Microtex, that's the route I would go. I wear a 38" inseam. You just gotta do what you gotta do if you want to hunt comfortably.
Give a call to game gear, they will add on as much as you want free of charge. I normally wear 34x40 and after I tried their pants on at the expo in salt lake in 2014 I ordered the larges with 4 inches added. Best fitting pair of pants I have