Yes, you can include this in any modpack. As a courtesy, I do ask that you please simply give me a heads up if it is a larger/public pack though.
No, you cannot repost this mod elsewhere. Details in spoiler.
Posting my mod on different websites is allowed as long as you link to this post and don't re-upload the mod to a different file sharing service. The download link must be my official curseforge link (Downloads page or Direct Download Link). Using bit.ly or other URL shorteners that you money off are strictly forbidden. You can't make money of other peoples work. #StopModReposts Look at this thread for more details.
You are not obligated to donate by any means, this mod is 100% free, but any contribution really helps me have more time to work on the mod, so I can create better content for you! Any amount is greatly appreciated.