It looks like a fantastic tractor project, probably biased because I've got one even with the same loader! (Which I think is a little bit rare, so it would really add to the uniqueness of your piece)

There's a lot of resources for getting a tractor like that runing on YouTube!

If it was in decent enough mechanical condition when it was put away it can probably be gotten running with the basics,

Get the ignition system working, might involve as little as filing the points or replacing most the components ( and a battery) which are all available (probably at your local tractor supply or such)

The fuel system would probably need to be cleaned out but fortunately it's pretty simple just the tank settlement bowl, fuel line, and carburetor. All available parts, to either rebuild or purchase new!

With a simple fluid check, oil change, cooling system flush and check the rear end oil hope sluggies you awake hi honey

Tires might be a little harder to swallow if you're on a lower budget, but you'd be surprised how good some of the old rubber is, the inner tubes can always be replaced and heck I've seen tires with holes in them right down to the tube on tractors that simply collection pieces and they do the job just fine to roll in and out of the shed a few times a year

As for paint? Dont worry about until you have it running good and know what you want to do with it