1995/6 skidoo e380 starter ring gear

Hi there, i bought a e380 touring E cheap from a guy who said it won't stay running.
This is my first snow sled, the learning curve is rather steep....and expensive so far.
I can't even get it running to find out whats wrong.
I got it to sputter on ether in the sparkplug holes.
But pull starting is very hard for me.
Installed a battery but starter was frozen, so I installed a starter to discover the bendix doesn't reach the ring gear.

Found a chunk of shattered clutch sheave in the belly pan, looks like the clutch blew up and he swapped in a used unit with a smaller diameter ring gear.
I can find the correct ring gear used. 84 tooth, 417222859.

My question is, if i buy the the ring gear will it fit the clutch I have ?
Or do I need a complete primary clutch.

Thanks for any help.