Guys. There is <u>not</u> , and never has been, a clutch return spring of any kind on a Spridget, other than the pedal return spring at the master cylinder. The pressure plate fingers are what returns the clutch slave to the release position.
They don't have a rear main oil seal, other than a scroll on the rear of the crank, that is supposed to "wind" the oil back into the engine. The same for the front of the trans. No seal there, either, although modified front covers are available with a seal fitted.
That throwout bearing looks separated to me, too, from the pix. I'd toss the lot, and have the flywheel resurfaced by a shop with the proper machine, at the same time they are replacing the ring gear.
Take the tranny out, and replace the clutch arm pivot bushing and bolt. These are normal wear parts, and should be replaced with the clutch. A bad pivot bolt or bushing can prevent proper clutch operation. Also check the pivot hole in the release arm for wear. Make sure the rubber boot on the clutch arm is in good condition. Unwanted road grime can get inside and accelerate wear. I replace them along with the clutch as a matter of course. Make sure the little drain hole in the bottom of the bell housing is clear, and the cotter pin inside it moves freely.
When the tranny is out, inspect the lower mounts. A soft, or torn mount can cause it to pop out of gear, especially first. Replace as required. Look at the tailshaft seal of the trans for leaks.
Jimmy, it will go back together much easier with the engine and trans assembled on the ground. You'll have to pull the grille and radiator, but it still is a bunch easier than trying to wrestle the engine in separately.
Don't mean to sound like the old curmudgeon, but I've done a whole lot of these over the years, and I see nothing there that I would consider re-using.
Jeff