Why now?

Max score teams for the first tier (300k points):

Tarkin solo

Nest solo

Sana/Hondo duo

Trash JV with the right modding and strategy

That's 1.2mln points that don't require any of the new characters. All of the characters above are accelerated. Tarkin and Nest are super old and only require 100 kyros each to bring to relic level. 

Let's say you have a small account and kyrotech is a big barrier for you. Get Tarkin and Nest to R5. That's 600k you can contribute to the guild raid score. 600k x 50 = 30mln guild score.

Hell, let's say even Enfys Nest is too titanic of an effort to make for you. Tarkin only. 

Tarkin is a GL requirement (for LV). His shards are in Galactic War shipments, Squad Arena shipments, and Fleet shipments and probably other shipments too. He is one of the most easily accessible characters in the game. He only 100 kyrotech. Get him to R5 and put speed/potency mods on. Get both of his zetas.

300k on the lowest tier. 50 x 300k = 15mln guild score.  

15mln = 2nd reward box (max mk1 tokens, includes mk2/3 tokens)

Tarkin + Nest = 30mln guild score

30mln = 4th reward box (max mk1 and 2 tokens, 1750 mk3)

If you are not willing to relic two super old characters for the guild raid, you are arguing in bad faith. There are very accessible options for even small accounts to put up a score for Order 66. You don't need the new characters at all.