A Sir plus amount is the amount of more than 1000 or 1000+ if you want to use the set of words you have to make the amount of the material or object your talking about hard to get, Since it is a word that has a relation with Superiority...
You can never and I mean EVER talk about something other than a certain material or object
"I'll need to get a Sir plus amount of pillows to create a pillow fort"
Or
"I'll need to kill a Sir plus amount of people to create a blood bath of blood pools"