Get on their website and do all your homework first just to make it all easier.  I bought several of them from Fehr last year, It is someone who actually speaks English on the phone and knows what they are doing.  I like ordering everything online and not dealing with someone over the phone who usually screws something up but they were great.  The 7K series Deere stuff was 10x better than the OE crap.  I just got the hard plastic backed stuff.

Some glues and some snaps/bolts/pins, all depends on which piece