They only have one of each in stock..be ok 2 different ones?

https://www.thonk.co.uk/shop/feedback-cp3-mixer-full-diy-kit/

https://www.thonk.co.uk/shop/ai022-kit/
-- Indianabones007

as long as you are happy, yes

"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia

Utility modules are the dull polish that makes the shiny modules actually shine!!!

sound sources < sound modifiers < modulation sources < utilities