Last week I was able to make a lighted ts switch from instructions here: lighted TS chip switch - homemade - Diesel Forum - TheDieselStop.com
The Switch costs about $30 in parts from Radio Shack plus a gauge. I used an old temp gauge from Wal Mart Clearance Isle for $7. It took about four hours to make with a lot of cussing but seems to work great. I think saving 80 bucks was worth the hassle.
2000 Ford F350 ECSB 7.3 4" exhaust, afe intake, gauges, PHP tunes = edge GONE, leveled on 315s, custom 10" stealth box and 4 - 6" subs under back seat
Current student at Missouri S&T