Interested to hear how this has gone. I've never been happy with my Debut 3, it's one of the older editions with the Ortofon 5E cart. I bought it pre-owned with an acrylic platter already added.
I've been toying with upgrading for a while be it cartridge / new turntable but I've just held off.
I've had a Rega Planar 2 come up, very lightly used at 50% the cost of new, and I'm tempted to get that and sell the debut on as is. I've never replaced the belt on the debut, nor the cart so it's probably going to need a bit spending on it anyway.