If you want to find a card with 0% APR on a balance transfer, you can use our balance transfer calculator. We cannot tell you anything about the credit limit because it is determined by the card issuer and depends on your credit history and income.
But it looks like you are not a U.S. resident since you are looking for a credit limit in pound sterling. We primarily offer credit cards to people in the U.S. We also have several credit cards for Canada residents. If you do not live in North America, your credit card application for our cards will most probably be denied.