If you have the backing, buy yourself a used 172 or 152. (By used, I mean an older, solid model, might be higher time, but something in the $35K range) I had a 1965 F model 172, bought with 200hrs left TBO, but cert IFR for $32K.
Find an instructor who'll train you in it, and diligently pay the avg rental rate back to the loan on the aircraft. If you're really savvy, when you've got your cfi, work a lease-back deal with a local FBO, and train others in your airplane. By the time you move on to a different paying gig, you might have the plane paid off, thereby making the bulk of your training cost only the instructor charges (multi obviously will cost additional).
I did this, but didn't buy the airplane until I started instructing. Sold it when I went to a regional, broke even, and got a lot of flying time in my own aircraft. Wish I'd bought it in training! By my cost analysis, I could have paid half the equity back on the plane by the time I had my CFI,CFII.
PM me if you want copies of an Excel cost breakdown sheet I used when I was working with the FBO