Gravely 546? - Barn Find Restoration Part 1

This is a Gravely that I just picked up. I believe it is a 546. It definitely has a K301s engine.
Hoping to bring it back to life, and start using this amazing machine.
If you have any tips PLEASE let me know.

[@terriewiese6524]

A little tlc, and you'll have a great mower. I love mine.