I too have very slight oil wetting at the gearbox crankcase seam by the oil pressure sensor port.

I also have some oil mist coming out the oil tank breather tube, just enough to collect dust.

I used to have the odd coolant squirt .when I did my five year hose replacement , I put spring type hose clamps on all the hose connections. I haven't had a leak since. The coolant leaks would appear when the tempature outside dropped significantly.