Nice one!
Free, but if you fall and cant walk, your f'd without a crutch or a bike to ride!

here's an alt. cheap too. stores away nice.
Got plywood sheet laying around? (3'x3' min)
~1' in from the rear edges/corners of the plywood, screw down 2 cabinet handles.
(position for exhaust clearance)
park with your center stand on the plywood and rear tire between the handles.
use your ratchet straps connected to these, and your rear frame rails to pull the a$$ end down.
nice-n-stable

or that cool bike box someone posted plans for on here.
it'd be easy to affix tiedown anchors to lift the front on that.