Ortofon verto step-up any good?

Hi everyone I just purchased a new RP8 turntable, I am looking at getting a dynavector 20x2 cartridge for it. And my turntable dealer has a customer looking to upgrade his lightly used step-up transformer. And needs to sell it first, and I need one for my phono preamp to run the low output MC. It’s a ortofon verto step up. I Would get it for around $500, should a guy jump on it or save up for a music first audio audio mc 632 step up for $800? Also is the ortofon Verto a better step up device?