So it looks like my only choices are to try to send the control panel out to one of these off-site repair services or bite the bullet for a new range
Yes, it looks that way.

any one have any experience with getting a control panel repaired?
Lately, if we send 10 away, 4 come back not reparable, 4 work ok, 2 have to go back again for warranty...JMO!

jeff.