Question for folks out there... I have my eye on an Estes #1284 Space Shuttle, Master's series. It's open but complete. What do folks think a good price would be for me to pay? In other words, when do I pull the trigger? I'll have to get it mailed to me, so I need to account for total cost including postage. ETA: I'd be building this, and flying it at some point, not keeping it in the package. I have the amazing superpower of being able to take valuable rocket kits and turn them into virtually worthless models.