here's what i do with any bike facing long-term storage. how you decide to do any sort of building/shed climate control and security measures up to you.
1-stabil treat the fuel as per container directions and run for 5-10 minutes to circulate the fuel mix.
2-access the throttle body by removing airbox cover and airbox lid. purchase a spray bomb of "fogging agent". any marina or boat sale joint sells it as well as online. start motor....hold at 2500rmp and fog till it stalls. only takes a few seconds. replace airbox lid and seal off any openings in lid to prevent mice from nesting. they LOVE the air filter area on a buell. don't ask how i know.
3-in your case i would remove battery and store indoors.
4-spray all exterior shiny bits EXCEPT the F&R rotors with an anit-corrosive spray.
5-park front and rear tires on cardboard. i would NOT use carpet.
6-cover with something snug and a material that does not attract moisture.
7-disc brake lock recommended.