There is nobody who is real cheap on 1.25 bars, although Firm Feel has one that will bolt in the stock position for $300.
The 1.125 can be found all over the place. Summit and Jegs typically have these for around $150 or less. You can find them on sale from other places for around $100 on occasion. Ebay has any number of them in the same $100 price range, although you can occasionally score them for even less or find them at swap meets really cheap.