Have an itch to build a 26" SS Inbred. I was looking at the limited edition. I am not sure if I should go 16" or 20". I am 5'08" with a 31" inseam. My current ride is a 17" Monocog 29er. I prefer to run a short stem 50-70mm. Looking for some input. Don't want to buy one too large or small.