Its a 17hp Kawasaki. The problem I see is the Battery mount is in the way from extending it straight out.
Dumb question, can the battery be moved UP? I have done that before. I removed the battery and mounted two pieces of 2X4 and ran the oil drain line between them then put a matal plate on the 2x4s to set the battery on. Worked great. Post some pictures of the set up you have and I am sure some one on here can help