My first Jeep I think I had put about 3k into it (including 1k for the initial cost of the Jeep, and doing a 1st stage and 2nd stage build) however the 2nd stage was done too cheaply and it did not use the right parts so I parted it out and picked up a different Jeep.Currently with this new Jeep, I would estimate probably 5k in parts is already bought (not including the necessary tools, like welders, etc) but I am far from done. I am expecting that I will be around 20-25k into it when I'm all done. However this Jeep is only intended to get built once, no "stages" and so it will use all of the best parts that I want right up front. In the long run this will save me money from not paying to do it twice. Buuuut I can't really help with the wife situation. Because I am single. and that's the only way that I will be able to finish this Jeep.