After doing a bit of looking- If your bike was stock- the stock FD was the Mountech.

I haven't been able to keep up with all of the threads about this bike, so I don't know where you're intending to go with this. Modern shifting?

IMO, if you're using an RD as new as that- and you're planning on using modern shifting, I suppose you'll need a derailleur that's compatible with your shifters, and in turn, compatible with your chainrings.