First, a big thank you to all for the kind comments! They are greatly appreciated.
Fueled by coffee, I stayed up until 2:00am this morning and completed the underside rigging and attached the wheels.
Inspired by the build photos on the WNW site I attempted some dirt and dried mud effects on the wheels and surrounding area using various acrylics and pigments. First time I've tried that and I think it came out OK.
I noticed earlier that the axle had a little hole near each end but no mention was made of them in the instructions. I figured on the real aircraft that's where retaining pins were fitted to hold the wheels on. How they molded the axle part with those holes, which went clean though, is beyond me. Regardless, in looking at period photos I thought I could make out the pins so made my own from bits of steel music wire. If you look carefully at the 4th photo you can just see one of the pins sticking down from the axle end.
Eric