@CAVEMANTATICS:
If you decide to buy here is another item that could really get you. The Rocky Mountain airport (you meant KBJC right?) is under the Denver Mode 'C' Veil. To operate an aircraft under that airspace after Dec 31st of this year will required what is called ADSB out. Without it you will be in violation of a 14.CFR.xxx.
A very clever seller who knows you don't know anything about airplanes could sell you a nice [insert plane type here] and not inform you of this. Heck, he might even have it priced lower than other similar planes that do have the ADSB out installed.
Well there is a reason. If you install the equipment via a well known transponder replacement (Garmin, Lynx, etc) you are easily looking at $7.5K or more. There are some simpler versions that mount behind the panel for under $2K but might require another $2k of labor and may even need a newer transponder anyway. The cheapest option is a device that mounts on the wingtip or up on the tail and also replaces your old light bulb with an LED. Thankfully, those are around $1800 and maybe another $100..$200 for light labor and some paperwork. However, that cheapest option may not be certified for every type of plane.
I would hate to have you buy the plane (which can take a few months). Then its late October and you start your lessons and on Jan 1st you can not fly it without spending big $$$$ on ADSB out.
Or put another way, if you can find a plane with ADSB out already installed you have done well (and paid a bit more but that is okay). If you are in doubt, please post the listing here and people can help you understand what you are and are not getting.
Finally, do not confuse ADSB in and ADSB out. The ADSB in devices are optional and very useful. But they do not meet the mandate.
Lots to learn but you will get there. And there are some very savvy pilots and owners in that area that might be able to meet you and talk over coffee or dinner, show you their plane and explain all this stuff in person. But please, keep posting and asking if it helps you get this right. I think its worth it