Converting dollar machine to quarters

[Dreese]

I just got an old a United Gaming Poker machine running.  It currently takes Ike silver dollars.  I’m pretty sure I need a new comparator and hopper to convert this to quarters.  Is this true? Alternatively does anyone have a lead on where I can buy a bunch of Ike silver dollars that aren’t ridiculously priced? Thanks

[Paul]

Talk to you local bank, they can order them but there may be a min amount.

[shortrackskater]

Just some info:
Regular circulation Eisenhower dollars were never silver (only the proof versions for collectors). They're 92% copper and the rest is nickel. If they were silver, you'd be paying about $20 each for them. 
As Paul said, talk to your bank. Better yet, just get a list of banks and credit unions, and call them weekly. I accrued about 150 of them from my credit union.