Zinsco circuit breakers

I haven't replaced a panel in about 10yrs, but I recall Cutler Hammer is pretty high end. Most of the money in a panel change, isn't so much the box as it is all the breakers. I believe Square D, or GE are good panels, and good breakers. Up here they sell them in HoDePo. I don't think it would cost more than a grand, but I'll admit I haven't priced one lately. Perhaps you could double up on some circuits on some breakers for awhile, and buy more breakers later.
I have bought some copper wire, though, and that has really gone up.