Thanks for then insight- a few updates:
1.The battery is brand new
2 The lights work so battery is working
3 I put a wood shim in between the starter actuator and button on starter to confirm it is fully depressed to starter

I have no experience pulling a starter like this - will I need any special tools if I pull it out? How would I test it while it is still mounted to engine. I have a construction background and can work with tools but have limited automotive experience

The cables are old but do not appear to be damaged - is it still worth pulling them and cleaning or is that a long shot? I have confirmed connection to battery and starter are tight?

Really appreciate your help - I bought this 46 from a dealer in Illinois and it seems to be in pretty good shape - frustrating how it just quit.

Thanks

Sean