Just fit an oil catch tank - works well for me.
And beware about undoing the sump plug - as planenut states - there's not much in the way of thread in the crankcase so its easy to strip the thread......
Another warning with the sump plug, if you do remove the plug make sure it is fully home and tight when refitting if not the vibration will cause it to come out. I discovered this with catastrophic results requiring a new engine.
