TONY - I'm surprised a 30+ yr old CC still has the seat safety switch and the "no cut in reverse" switch.
Not sure how many other owners my 982 had when I bought it, at least two before Me in 20 yrs and the seat & NCIR switches were already gone. Most of my trimming is done while backing up.
Not a big fan of the headlights being turned on with the ignition switch on that vintage CC. Makes for a way too expensive and trouble-prone ignition switch, while toggle & push/pull switches are cheap.
Just make sure you include an in-line fuse as close to where you tap power from on ANY circuit you create. I've had problems with the old style glass tube in-line fuse holders they sell now, the plastic is so cheap the ends melt. I'm doing "Durability testing" on a plug-in blade style in-line fuse holder on my CC 72 now, think I'm up to 3 yrs and counting. In about ten more yrs as the rest of my in-line fuse holders fail I'll replace them all with the blade type.
The push-pull switch I had on the 72 for probably 20+ yrs failed one night about 10-12 yrs ago. I'd mowed from Noon till 2 AM the next day, so ran the lights for roughly 8 hrs, while I'm unhooking the cart from the lawn vac the headlights went out. I was sitting next to my shop so just drove the tractor in and parked it for the night. The switch had been acting up for a while, maybe a year, you'd have to pull the switch 2-3 times to get the lights to work, and sometimes they'd flicker. I figured the fuse finally blew, I disconnected the battery ground cable and called it a night. Next morning I went out to replace the fuse. The entire phenolic back cover for the switch was BURNED up, the wires & connector's were just hanging there. At that time the fuse & switch was located down behind the battery, a terrible place to try to put out an electrical fire. A new Heavy-duty switch, new fuse holder, and some wiring and I was ready to run again. Could have had a real messy end to my trusty 72 that night!