That is a question that I have no definite answer for, because of the on variable called life, time I spend on each model depends on that on variable. I have one that is going on close to three months now, that model should of been finished two months ago, but me taking a few couple of months to order paint for it, and now going on three weeks waiting on the paint order. I would say that if I have nothing getting in the way, and dont lose any motivation, and depending on the kit, building time for one kit is anywhere from a week to two weeks.