Hass, hate to say it but " I told you so"
you need quite few bits to get the filter reloacted, happy to supply if you want but they will take a few days to come through as they are made to order to suit the application.
Oil cooler is not a must have , I relocated the filter so it gets cooling flow accross it and ran the pipes so the whole Oil system has an extra 1.2 litres to use, you can fit an aftermarket( mocal ) oil cooler should you wish though.
Gimme a buzz @ the unit tomorrow dude, I'll get the catalogue out, not cheap though dude as its imperial/metric + adapters all the way through.

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