Just wondering, I guess its time to put some guages into her!
Wondering if there WAS a cheap solution?
I've seen a "generic" brand on e-bay for $85, and an autometer z-series for $125, both included probe.
Although I have not looked at the generic e-bay offerings, I would budget on spending at least about $120 for a quality pyrometer kit (to include gauge, thermocouple, and wiring.)
This thread has pyrometer recommendations:
http://www.vwdiesel.net/phpBB/viewtopic.php?t=1142