Don't be afraid to build a custom skid or some other type of apparatus to facilitate the move...I have a walkout basement, but I have installed 5 different wood burners (four furnaces) over the years and did them all by myself...and the one was bigger/heavier than the HP is! As was already mentioned, take everything off that you can, and
work smart, not hard...mechanical advantage is your friend! (and pizza/beer will buy you a few more friends usually too!
)(but then you may have to deal with people that just want to hurry up and get done so to go home! I would rather do it by myself then deal with "bull in a china shop" types)
You can do a lot with blocks and levers...and winches...I love winches (or even just a "come-a-long") and pieces of pipe to act as rollers, or even "slides" if needed.
Oh, and that weight must be shipping weight, with the pallet/crate...the HP is not
that much bigger than the Tundra, and I found the Tundra easy to move around by myself...500 and some lbs off the crate (Tundra)...it felt much lighter than the Kuuma 100, let me tell ya!