The noob has come a long way- it's been out almost 5 years now! The crown and tube should be good replicas of the gen assembly- they are on my SSD V2 which also comes from the noobfactory. So then, is it worth it to change? Maybe you just change out the crown which is a 5 minute operation. Or you just trim the crown guards and go on. First up, buy a used 24-703 crown and remove the stem and crown on your noob and see how the gen crown screws on the rep tube- if you like it, swap over the stem and away you go.
Changing out the tube is more involved, remove old tube, tap hole with 3.0mm x .35 tap, maybe chamfer the case to seat tube at proper depth, install with loc-tite. It's not hard but it takes some practice and experience, plus a few tools- tap and a case tube wrench. Also, I typically use an aftermarket tube and a used gen crown just because it's easier and cheaper to get the AM tubes.