the drain plug on the bulldog is supposed to be the same as the K9 and it is a little hard to find. it is in the bottom of the oiltank hidden by the oil lines you will have to force them out of the way a little to get to the allen head plug. as far as the shocks, they are made by "Works" and you can google them and send them back for a rebuild if you want.
I have 2006 k9, my oil drain plug is on left if you are sitting on bike. On bottom of oil tank behind trans. It is a small allen and can be a little hard to see. Maybe a mirror and light would help.