Would love to see this succeed, but it will not if you censor the public version. Have seen it several times, people paywalling instead of timegating always abandon it because it never gets enough traction that way.
And as nice as 4k renders sound, the more in quality you get just doesn't justify the size people will have to download, 2k is more then enough, most games have at most 1k renders.
Well, my two cents, its your game, but I don't see success trough paywalling.