Cracking job, looks superb
, would'nt worry too much about the paint (for the record i agree that it's a respray/powdercoat), looks very tidy in the pics, if the paint is durable and not hanging off i'd leave it, IMHO the gloss finish looks better than Matt anyway.
Components too, LX is decent kit, XT would be nice but nothing wrong with LX.
Main thing is you obviously like the bike and are getting out and enjoying it
The figures for weights are all wrong, Lx is way heavier than XTR, those Lx rear mechs, with the long steel cage, weigh well over 300g, compared to a short cage XTR, you are looking at over a quarter of a pound on the rear mech alone. Same applies with the Brake levers.
I just feel a premium Prestige frame, deserves a better group, longer term and those wheels will be over 2 kilo the pair.
Live the dream-Ride on!