If it's worth doing, it is worth doing right. These guys are qualified to do just that. They don't come to your house, so they have overhead (ie a shop to repair, utilities, office staff), again, they're qualified, indicating years of training, incurring an expense/debt (like doctors and lawyers), they're in California (highly regulated and business unfriendly). Put these together and you will be expected to pay for their services and in the long run, it WILL BE WORTH IT, because, it will be done right, with quality parts.