I have an CaseIH AFS (similar to Agleader 2000) That I would sell for a reasonable amount. E-mail me if you're interested and I'll give you my phone No. and see if we can come up with a workable solution.
Is this the first monitor that Case hadIJ I had a similar problem and had to change the processor in the box, simple job. Ordered from Case, was not expensive around 20 dollars. Make sure its the latest version of the chip.