I cut the pipe a littl way past the bend, and used a piece of hose to connect it to the filter from the oil tank. On the other end, simply a piece of hose from the oil pipe tail to the filter (all secured using hose clamps). I've done around 2500m with this arrangement with no issues.
In the pics, you'll see the filter is between the engine plates where the ski slope would be. I've also attached a couple of thick rubber strips to the mounting holes of the filter to protect it from vibration.