This is not a chemistry corner but a cosmetic chemistry corner… meaning, it has usually nothing to do with chemistry but only with mixing cosmetic ingredients (hoping that they don’t undergo any chemical reactions).
Synthesising H2O2 is fairly simple and there’s just one approach being used by nearly all manufactures. This strategy is scaleable and not too difficult to perform (for a real chemist, not a cosmetic ‘chemist’).
However, given that you plan a pilot plant imlies that you’re running a different chemical route… which means, only you can answer the question.
Besides all that, with the scant informations you share, it’s impossible to give you an answer. For all we know, you might be better off buying concentrated peroxide and dilute it down to your 6% 😉 .