Just keep your 33 and get a GTR. When i was 20 (at the start of the year) i had 2 cars, a VT wagon that owed me 24 grand (bad idea i know) and my 32. I was constantly doing both of them up, one week id buy something for the wagon, the next id get something for the 32. I wasnt making alot of money bout $600 a week and had to keep them both running aswell as other bills i had. The point of this is that its not hard or expensive to have 2 cars and still save some money aswell, you just have to have self control, its pretty easy. Have some fun and get the GTR and then get the house a year or 2 later
Whatever you decide goodluck