While your goals are great, and I don't mean to lessen your enthusiasm any, but to think you can start at that level may be a bit of a reach. Build planes requires skills that need to be learned, and planes to the level that you want to build to will require A LOT of those skills. In fact, most of the plans for planes of that caliber EXPECT you to know building techniques and do not tell you exactly what to do to construct the assembly. This would be similar to somebody starting medical school tomorrow and next week they think they  are ready to heart surgery. There is a learning curve required and it's really hard to ignore that curve.

I understand that you say money is an issue, but you may wind up spending more money by not going through "the steps" to build your skills. Start out building some smaller more popular kits. Many of the more popular kits are very well documented and designed to ensure successful builds. Buy starting on these smaller kits you will build the skills needed for you "dream build" later on.

I'm sorry if this sound harsh, but I think it needs to be said. While it's possible that you could do this, it's really unlikely that you will be able to. I would hate to see you spend that much money to attempt something like this only to find that you're not ready for it. Trust me, I want to see you succeed and that's why I'm saying this.

Hope this helps

Ken