Go for the steam gauges. I not only say that because that's the way i did it (
) but because the glass aquantance will come easy enough for you unless you're a dinosaur. I now fly mixed fleet king airs, some with glass and some with steam, and while the glass was challenging to begin with, going back to steam was a lot more difficult.
You'll learn the glass works soon enough anyway, if I were you I'd spend my money on getting good at flying with the antiques. Maybe your first job will be on one!