Not sure how large Hanford is, but in the LA area, I see people on Craig's List advertising all the time for loaner bikes to take the DMV test on. Seems the fee is fairly nominal, $40-50 or so for a smaller 250 cc bike. You also might check with a local bike shop to see if they have any referrals for test loaners.
Of course, taking (and passing) the MSF Basic Rider course waives the riding test requirement, but it seems that will be difficult for you to plan for. And you should be able to do the test on a 'Strom, but it may not be easy, expecially the figure-8 in a box. Good luck!
2013 Triumph Tiger Explorer