better gauge to go with for monitoring
 

well now that i'm changing out my gauges, i might as well do it right. out of these monitoring gauges, what is the best way to go as far as easy reading, price, and accuracy. Exhaust gas temp, Air fuel mix, or wide band air fuel mix.

EGT is probably your best bet. Try to get one that alerts you with light or sound if you exceed a set threshold.