@prabath-anuradha I mean I still think 10,000 is a huge amount, I mean even if you have a 10 gigabit WAN connection, if they are all using it concurrently then that's 1 megabit per second per connection, that's almost nothing and IMO would make the VPN not very useful.
How fast is the WAN connection going to be at this site?
I think 1,000 might be more reasonable, still a lot even on a 1541 I think, but more reasonable to achieve.