Yes you can bypass the ignition. That's the simple bit.

55 quid for a key? Did you get shares in his business as well?

To get into the tank what you need is one of those little watch maker screwdrivers and a ................... oops. Better not go there

I take my locks to a little old lady down the road. She's been at it for 30 years and will make a "one key fits all" in about 20 minutes. And she doesn't charge £55 +VAT.