That does seem like a huge number. Maybe we give the current system a shake out and see how it works?
If there is enough interest (and mods are ok w/ it) in a tiered or increasing amount I’ll take a look.
It seems that maybe buying blocks at the server shop or making claim grants purchasable/craftable with in-game resources might be another way.
Long term players tend to be wealthier (in game) and could afford to buy claims if they wanted more than the time allotted grants too.