You should be able to purchase a triple EGT with boost in digital and ultra quick stingers off the shelf. I'll have to get into my sled stuff for some manufacturers but I kinow there is more than one and most of the packages have a built in datalogger.
As far as I know, everything related to the never ending quest for more power is expensive and the expense ramps up in a non graduated rate as the power increases...........
However, when you look at most of the bling prices for the Rock, the speed parts aren't really all that bad.
Hombre: I'll get the sled catalogs out today and find the EGT units and dataloggers.