Parts Compatibility

Greetings grizzly nation!

I am a new user to the forum, not sure exactly where would be best to post my questions, so I thought I would start here.

A quick background: I have 2, 2002 Grizzly 660’s, recently one was wrecked. Going to have to replace the whole right front wheel/suspension assembly, from the frame out. Also the headlight bezel, and front grill guard.

Looking to pick up everything I can from good used parts sites, ebay, etc., but they can be vague on part numbers, and descriptions.

My specific questions are:

1- Are there other model year 660’s that ALL of the parts are compatible with my 2002’s? (i.e. 2003 thru 2008)

2- The Clymer repair manual covers the 2002-2008 model years, so does that mean the parts for all those machines are interchangeable?

Hoping to not have to research compatibility on every single part I want to buy if it is from another model year. Any help from a good knowledgeable source would be greatly appreciated!

Thanks in advance!