The first thing to clear up is, are you looking for the Files to Print yourself, or are you attempting to find someone who will print the suit for you, i.e. looking for a commission?
If you are looking to commission someone to print the suit for you, I will move this thread to the appropriate section, The Marketplace, for a Want To Buy Thread. However, I will caution you that not many makers out there take on commissions of Full suits, and if they do, it is going to be a very expensive proposition. In general when it comes to the Halo Costuming world/community, it is very much a Do It Yourself style. There are people that do sell Casts of Helmets, and one fantastic manufacturer of ODST armor kits, but aside from that there currently is no one really readily offering full suits, kits or 3D prints. In a year or so, 850 Amor Works might be offering Reach style kits, but they are still a while from producing them.
If you are looking to print it yourself, you can't do better than either option Alexander already linked you too. As for "Noble 6's Armor," well, that's kind of a loaded question, as since N6 is the player character, it could really be any armor, from a certain point of view. Now, canonically, based on marketing and merchandise, N6 is usually represented in just the default armor, with no attachments, and default Mark V helmet.
So, to do it yourself you need to buy these files from NerdForge:
Find the perfect handmade gift, vintage & on-trend clothes, unique jewelry, and more… lots more.
WARNING: I as the original artist do not consent to recastings and reproductions of works produced from this file. If you would like to make molds and castings, talk to me directly and we can work something out. I would like to be fully credited in any resales or spinoff creations of this work but
Or use these Free files from MoeSizzlac
Update 03.04.20 - Uploaded V2 of Right Hand Plate. First one was a duplicate of the left and not a mirror. This is an armor set remixed from a Pepakura armor files uploaded by Art Andrews on the 405th.com forum. The files I made printable are: 1) halo-reach-mjolnir-mkv-bicep-right.pdo...