Not quite sure what the issue is
I think the biggest issue is no one really understands what you want.
As far as I understand, you want 1 set that can be used for cash or tournament, for 1 table up to 10 people. Is that right? Now the base of your tournament which will dictate the chips needed for the tournament will be based on what chips are needed for the cash game.
What you need for the cash game is a complete mystery. You initially want quarters, but say the buy in is 1,000 to 1,500, so that doesn't jive at all. You need to specify what you play in the cash game then a chip breakdown can be given/discussed.
As far as 1 set for cash and 1 set for tournament, which is preferred, at small stakes among friends it is less of an issue to just use one set for both. I did for years and it was never an issue. But if the game grows and starts to have people you don't know well and for bigger money and you play cash and tournaments on the same night having two sets becomes a very good idea.
As far as deflating the chips for a cash game, I'm sure many of us on here have done that before, when playing with youngsters or beginners. I've played many games where the chip value was 10x the actual money. But it wasn't on purpose, it was done because I didn't have the correct chips for the stakes we were playing. It would be silly to build a set with the purpose of doing that. Build the set correctly for the stakes you play at, why buy something wrong on purpose?
If you want helpful advice, then give the necessary information.
One table, 10 players, tournament and cash.
Need to know cash stakes, buy ins or blinds, then you will get good information. If the buy ins are truly 1,000 to 1,500, that's fine, it can be done, but nobody, buys in for a thousand dollars and gets quarters. So are is your cash game a thousand dollar buy in 2/5 game or bigger, or a .25/.25 game with a 40 dollar buy in? Or somewhere in between? Or do the stakes vary and you need to cover both?
Bottom line, the more information share the better the feedback and help will be. Folks were trying to help, but you weren't very forthcoming with information and saying you want quarters for a thousand dollar buy in is ridiculous.