When mine gave up the ghost on my 2009 Sport I bought this set up and used the motor in the existing bottle etc and kept the rest of the kit for spares..

Not the cheapest solution probably but it worked without having to modify anything. I'm a keep them as they came out of the factory man, I don't like bolt on's and stuff stuck on everywhere it pains the ocd in me.

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2009 4/4 Sport Henrietta
1999 Indigo Blue +8
2009 4/4 Sport Green prev
1993 Con Green +8 prev