Vaal Temple changes

This is just an idea that i think would make the temple feel a bit more fun to do without changing it to much

this is not about the drops or lack of rewards , theres plenty of posts regarding that already

so my idea for a change that i think would make it ore fun to do the temples

instead of finding 6 circles then entering and placing 6 room tiles , running the incompleate temple for up to god knows how many times
instead , why not have the temple in maps be a small already built temple
lets say in act 1 its maybe just 3 rooms conected to the start, and by early endgame T1-T5 maps its a 4x4 grid (doesnt have to be a grid just a relative size )
each small temple should have 1 garantued special room that has a miniboss
and when compleating the temple by killing this miniboss you get tiles for your own big temple that you build just like we do now , but you can save up tiles so that you can build your temple from start to end in one go
the small temples could even offer you 1 random additional room to place to teach you how

to get to fight atziri you should need to kill the arcitecht to claim a key or a special room so that in the next temple you can do both

in poe1 you can make your temples into a map item , i think this would work here aswell if you wanted to save your temples and just run temple after temple , i dont think they should be tradable , not now atleast

another change i think is a must , either change so that upgrading rooms are done universaly from a single special room or have an info button next to the room for a window to show what rooms upgrades what rooms

i was gonna mention rerolling rooms wich they already added so thats great