It needs 1k in parts to get it to later code. 1k actually will buy you some spare parts as well (I ordered a spare io board, switches, pop bumper lights, and will be ordering spare leds).
It has a display out. If that display is the computer, doesn't matter your 1k bought you the later computer, problem bypassed. If it is the screen or control board its under 100 dollars to replace both. It is an off the shelf display. You could honestly use any that fit the frame and accepted a standard signal in that resolution. There is nothing special about it.
You keep chiming in saying he is trading for a 7k game. Do you know he is doing a straight trade? Do you have any proof? So far you keep telling us its a 10k game fully working, but we have to get it transported to us from europe for free. Also have to pay in european currency for free.
As for its in canada. Canada is still NA. People on here are more likely to ship from canada than europe and we have many canadian members.
So, to recap. You can't buy one for 10k in the us or for that matter na that is fully working and on the later code. You can't even show a fully working one for 10k in NA on the old code. You can't ship from europe for free. You have to hope that your european buyer wants USD or you pay a conversion fee. You may or may not be right on the import taxes, but I don't know. I looked into importing a jolly park at one point, but decided it wasn't worth it.
You shouldn't double dip on the cost of both upgrading and repairing a part you are upgrading. Heck as a former owner you should be much more aware of the hardware, but at this point I question if you are one of those people that believe pressing the power button on your monitor turns off your computer...