Ofc its possible to do, but not in a way that looks good. No self respecting artist(/photographer) wants to put out stuff that they think is ridiculously bad.

Your pricing sounds fine, their expectations of what a photographer costs not so much. It sounds like they only worked with amateurs before and are clueless about prices. 100€ or a dinner, lolz

EOS utility. I also played around with capture one on ipad lately, but i dont think i will continue the subscription, until they release live view on it, which it currently lacks and kinda ruins the whole thing for me. They are working on live view for it, but no idea when it will be released, once they do ill switch to using it more.