Ignition Set Up For Mcollough Weed Wacker Is $375 Reasonable For Replacing An Ignition And Key Set?

Is $375 reasonable for replacing an ignition and key set? - ignition set up for mcollough weed wacker

My car would not start, so I prefer the guy who towed it said it was the ignition, and my mechanic has also said it was the engine. He also said he would get a new set of keys and replace the ignition or something. So is 375 $ a reasonable price for a 1995 BMW 525i?

I understand that the BMW factory costs in general, more than other cars, I will not be deceived.