If the bearing presses in snug you should be fine, although I’d use loctite as installation “lube” just in case. I’d also replace all the bearings in the rear axle, if the spacers don’t look damaged then I wouldn’t worry about them. You might replace the front wheel bearings as well... peace of mind.
Is the hub usable?
Should I replace the bearing in the cush drive also?
How able the center spacer in the hub? The spacer in the cush drive? The wheel collars and axle?
Apologies for all the questions, I'm a little frazzled