limits of the multi store nopcommerce 4.1 / 4.2

hi, I was asked to manage about 300 multistores.
I ask you for advice, and notes to follow.
Thank you

I image this would be possible but would require some overhead from your server.

I have not tested this, maybe someone could share a little light if this has been tested.

You want to have 300 different domain names bound to the same website ?
How many Products ?
How many Categories ?
How many Manufacturers ?
Why 300 ? Sounds like it would be a nightmare to setup and manange it all - Not just in the website but also in IIS  
I dont know if anyone would have tested these limits ?
I searched google to see if there any limits on IIS but could not find anything specific.

300 sub-domains, maximum 150 products for shop, 50/60 categories for store.
why 300?
Manufacturers, ten, the customer made this specific request.
thanks again for the help