This is a good question Miko. Here are my thoughts on the hand - Im assuming that since you said there was a couple limpers plus yourself and the villain this is at least a 4+ player hand. Personally, I would like to not GII on the turn because with so many limpers you cant just assume the villain has TPGK. His range is a lot wider including hands with sets, top two pair, flush draws and straight draws. With so many combinations of better hands, I think you just c/c the river.