Yes, Reg sells the noobmariners just like everyone else. There's nothing wrong w/ the regmariner/noobmariner for the price as long as the a21j holds up.
But the bezel, insert and crystal are not gen spec. This watch came out in 2007 and was hot then, but has been supplanted by better watches- WM9 V1-3, Euromariner (MBK), TC, and BK's TWB.
Good mods for your LV are a smaller crown- gen preferably and probably tube, but maybe the existing tube will take a better crown. Better pearl- watchmaterial and slight trim to the insides of the cgs.
Or just wear the watch and enjoy!