Gaianotes 1002 Railroad color series, recommended by tytroum, been using it for all my inner frames since then.
Spamming my Nu with colored inner frame:

I took from someone else idea, if I remember correctly, shld b from bro HxiiiK 

I don't think that the funnels will make it hard to pose, the hard part is making the funnels stay together, the clips are not helping; painting the clips improve just a tiny bit 
As for where I bought the extras, I got them from HWZ forumer in S'pore; how much I can't remember liao  shld b around S$70 me thinks....

Alternative funnels are totally different....if you're not aware of this...

well then, we'll just wait for your completed project 
while I'll continue with the Sinanju 

hobby no toriko i think does the kit the most justice.. followed by Schizophonic then Hacchaka (i like to call him the nubmark king because while his reviews are always the fastest, they are always untidy and filled with nub marks)