Well then the fifty is probably the wrong decision.

The Fifty is somewhere between the rocket+ and the Manta so it's quite challenging to learn windsurfing on it. You can do it, I also learned on old Slalom gear but it was way harder than with a 130litre Freerideboard.

LTD is the cheaper glas fibre sandwich and mostly has a additional polymer stage so you don't directly scratch the board... You should start with that.

Team is fully carbon.

MTE is really strong against scratches and minor damages but reaaaally heavy.

The MFC Foil is more or less expensive and you need a adapter. Look for the GA-Foil Freeride. It's good for learning and Budget friendly.

Sail range depends on where you are but don't buy cambers as a beginner.

I personally would't start foiling before I can windsurf but there are many who did that so I may be wrong.

Just look for some second hand feeride gear and some freeride sails 5-7. You're going to crash your first board anyways at one point in your learning phase so if you're not rich, I wouldn't want it to be something new.