Bought the standard model .. did not come with a centerstand.
Purchased a ride-off centerstand here ..
http://wingstuff.com/products/2364-b...and-for-gl1800
Purchased hardware here ..
http://www.hondaparts-direct.com/OEM...D01AMJG4F3100A
Good install diagrams here...
http://powersports.honda.com/documen...70-MJG-670.pdf

Pretty straightforward install except that the spring has to be stretched to install it. Went to 2 autoparts stores looking for a tool . no luck. VERY stiff spring. SO I came up with this idea..cost me 5 dollars...
Attachment 23607
23 nickels, 2 wood screws, a board, and 2 adjusting eye bolts. WORKED GREAT! You need it stretched and held to 6 inches end to end.
Also..you DO NOT to remove any cowls or panels.
P.S. .. once you start inserting nickels it helps to tap them in with a hammer. Once spring is on and you place bike on stand, the nickels all drop out. Easy Peasy.

Job took 30 mins, stand works GREAT! I love it. Highly recommend