That Adventurer is 5000 or so wet...
Let's rough it out:
Camper 5000# wet
Stuff 500#
Option weight 500# (The numbers in the book are base so you have to figure all the goodies add up: this jives with a 2017 KR 450 I peeked in at the Fair a few weeks ago)
Pax 660# -- 230 me, 130 Mrs. MMW, and...