For that size transaction you should probably just talk to your bank Yanni. The rates from a bank are usually better, sometimes as much as half of Paypal's starting rate, but they do take a bit more to get started. The perks are that you usually won't have funds get held up, the negative is that it's harder to avoid the backcharges on cc fraud filings. I'd recommend that you start a new account just to associate with the merchant services and transfer funds from that account to your main biz account.
I've had bad experiences with most of the merchant services I've run transactions with(and I've literally run million of dollars in transactions) but the banks handle their issues faster than the others, especially when they know that their going to lose all your business and accounts if they can't make it right.
I've had bad experiences with most of the merchant services I've run transactions with(and I've literally run million of dollars in transactions) but the banks handle their issues faster than the others, especially when they know that their going to lose all your business and accounts if they can't make it right.