Survey: How much should I charge for 4K exclusive pics? (Patreon)

Hey folks!

Those who follow my streams might be aware that I've got no choice but cancelling all my current stream commissions, at least until I clear up my current regular commission backlog. I've been thinking on a possible alternative, however, and I'd like to know your opinion.

I'm basically replacing these custom stream commissions for a more streamlined exclusive illustration variant. Once or twice per month, maybe, I'd choose a stream day to design a full length DiD picture, featuring up to 2 characters max. Everything, from characters, to situations, would be entirely up to me. These pictures would be stream-exclusive though, meaning there'd be no Patreon or DA release, at least not until 2-3 months max after completion. Users who'd like to get a 4K copy of it can purchase it for the price of a single regular stream commission, with a 20% discount.

This is still a super early idea, but I'm feeling the urge of stop sitting still and do something to compensate for the lack of my current business model. Also, I don't discard the idea of selling a few of these exclusive stream pics as a bundle later on.

So, what do you guys say? Do you think this is a good idea? And, if you do, how much should I charge for it?
I'll leave a survey with some of the options I've been pondering. Still, feel free to leave your opinion in the comment section.

Thank you so much in advance, and have a nice day!