Cylinder Head Cover Oil Leak

[CapnJohn]

[size=2px]Newbie Here!....[/size]
I have a 2015 R1200RT with 36K miles on it. A month ago, I noticed a small oil leak from my left side cylinder head cover. This bike has just been sitting in my garage in quite cold Wisconsin!
I need to fix this before the season starts again. Can I remove the head cover to check the gasket without draining the oil? I have another 2K miles before an oil change.
Should I have a replacement gasket on hand. These are pricey at around $90. I believe these gaskets can be reused repeatedly if not damaged?
I have head cover guards on the bike. This bike was tipped over on its left side more than a year ago with no leaking oil or damage with the exception of some minor scrapes to the cover guard.
I haven't inspected the bolts to the cylinder head/guard to see if they need to be tightened slightly?
See attached pics - any advice appreciated!

[60Aviator]

Yes you can remove the head cover and gasket without draining the oil. About 4oz or so stays in the heads. Gaskets can be reused if Ok so check head, cover and gasket first. Clean surfaces good before reassembly. Don't exceed torque on the bolts as it is pretty low (10 Nm) to begin with and they break easily. Good luck.

[Doctor T]

I would suggest trying to re-torque the bolts first. You never know it may save hassle and money.