I also like this idea, although i will prob not be into it, purely due to the massive time investment it would take just to get the 2nd tier. witch i feel a lot of people would also feel. but now i feel as though it would be a nice thing to work towards. o man i can see it over 2 years from now i might have a final tier helm. xD
as an option to this, why not just make it a solid set you buy Ala’ Box set of gear. this way you could get the whole set at once. priced to the appropriate cost of said pieces that is.