I've been doing a bunch of parts swapping and comparing with building a hybrid motor and putting things in bikes/quads ,I've gotten used to Yamahas way of numbering. I can almost guarantee that the cam is the same because the middle group(actual part #) and the third ( variations/version) have the same number. The first 3 letters/numbers mostly only tell what vehicle the part is put in or model( this is still my best theory). I have physically compared quite a number parts like this and all so far have been the same. If the third series is different then it may or may not fit.

The heavier flywheel should work better for street no matter which cylinder is used to help smoothen out lugging and stop and go traffic. This is something I hope to test .

I don't think there will be much of a noticeable performance difference the plated and non plated liner. A slightly higher comp piston (maybe 10.5:1 not 11.5) will be a better option than to worry about liner.
Gearing is the same on both, all numbers are identical even the first series.
Go to this website and open 2 tabs with one the TT parts and the other XT and compare back and forth.

The carbs I believe is mostly jetting changes, I see the TT has bigger mains and pilot, needles are the same.