Hello! New here but i locate Toronto Canada. Heavy snow this week and I got a very similar situation to yours, but i am lucky to have my radiator and everything behind survived. So I came up with the same idea as you to upgrade the cooling system (intercooler, charge pipe, etc...), but i will leave A/C on my car as i don't want stone flying into my car and hit my face while driving on summer highway with opened windows haha.
After study bunch of math and formulas about intercooler i wisely choose to go with the same one as yours, the mishimoto J, but i was not confident about its fitting until I found this 2-year-old forum, it looks very racer and at least i am sure it works! Late congrats here haha~
Just some small questions, how did you mount the intercooler? do you think I can have enough space for the A/C condensor (since the IC is thick)? Were your headlights from a Jetta and were they just plug in play without any coding (My OEM are HID)?