ac130 has no power

When I turn the key my inherited AC130 has no power. Actually happened last Fall, it just shutoff while idling, no power since. No lights, no click, no turnover.  Checked the 20amp fuse, replaced though it looked good.  Pretty sure the batttery's good. Anyone have other ideas?  Former owner had disconnected a bunch of the safety stuff, like the seat thingamajob, but it worked fine right up til the moment it didn't.

The pto would not work on ours when we pulled it out of the building 2 weeks ago. Did some testing, no power to the pto. Pulled the battery, removed the cover the battery sits on, and that’s where the mouse nest was. Chewed the pto wires in half. Spliced back together and it works fine. Maybe you have a similar situation

I'd agree with Steve that the ignition switch would be a good starting point. I have 1 of these AC130s myself and have noticed that mine has an issue too when it sits for any length of time. At first, I had assumed it was the battery which was in it when I first bought the used tractor. Battery tested as good but I replaced it anyway which still didn't help right away. After a little fiddling, I discovered that cycling the ignition switch really fast a few times would finally get it to make contact to power the starter. It has been like this a couple of years now but still working. If I need to start it multiple times in the same day or even 2 days in a row, it works just fine after that 1st start. However, if it sets more than a few days to weeks before the next time I use it, I have to cycle the switch again that first time until it makes contact to start.