1997 Recon clutch replacement

I have a 97 Recon I’ve had for the last 11 years, and the clutches are finally going out, tried adjusting them, helped a little, but not enough, so I bought a set of clutches, springs and a gasket. To replace them will I have to take the engine off the bike or can it be done in-frame? And do I need any special tools? I’m in Alaska about 100 miles by boat from any shop, so I can’t take it in and have it done. Any info is welcomed, Thank you.