Permissions, unlock different "areas" with in-game purchases from shop

[biomio5]

Hey im currently making a skymines server. So let's say players start out by mining dirt, cobblestone, iron and gold. And after upgrading their tools, armor and so on. They need to save up enough lets say gold to buy access to a different area in the world where you can mine let's say diamond and emerald. And this area should only be  accesseble for players who buy this item from the shop.

If anyone have a YouTube video that explains this kinda thing i would love you to link it, or just explain it down bellow.

This is the plugins im currently using, and would Luckperms be a better solution instead of the classic GroupManager? 

[Spiderlogical]

With world guard you can create a region and deny everyone access to the area besides a certain rank

/rg flag <region name> entry -g <group to deny access> deny

[biomio5]

41 minutes ago, Spiderlogical said:

With world guard you can create a region and deny everyone access to the area besides a certain rank

/rg flag <region name> entry -g <group to deny access> deny

Thanks alot, That helped sooo much.

Now i just need a way to give people the rank, is there a easy way to do this? Lets say you buy a potion or an item and click it? and recive the rank, do i need a plugin to make clickable items with costum commands or how would you solve this?.

[Spiderlogical]

You could use the vouchers plugin and have it set the group of people to a group that is allowed in the region.