I have some images I took a few weeks back as a test. I could take some more if the weather clears. Do you want FITS (after dark/flat) or precalculated mags?
Also, are unfiltered observations okay with you? I assume if I took images on multiple occasions you could derive an instrumental offset? I’m currently using in field stars to derive a Gaia g Zp for each frame and employing tha -though theres a twist to that as I don’t use reference stars that are highly red or highly blue.