So what would be a good buy price for one?If it was complete new in box with everything it was imported with. Since I am looking at wanting to buy one now. I am not a Glock collector, And have had many over the last 25 years. And still have a bunch But figured it would be cool to locate and buy a first model,But really have no idea to value from $500 to $1500. so any input would be great.thanks RON K.