Aye Mackenzie,
The 'Bad Penny' raises its head again!

Have a look on this site:
Goffy's_vehicle_electricsClick on 'red blob' to the left of the items you wish to select, text clicking doesn't select!
May I suggest "Motorcycle batteries", these are all 'Absorbed glass mat' construction, including a 12v or 6v battery with a box to fit it in, if you have a machine requiring a 6v battery.
Some of the LED stuff may be of use to you and others, if you are not worried about "originality".
My regards, Bill