One prop to try is the WW2 para helmet from Gary Childress

https://www.renderosity.com/mod/freestuff/michael-4-world-war-ii-headwear-pack-v/75070

It will need scaling to get the proportions right, maybe using the grouping tool to get separate helmet and chinstrap props. The same technique to get a peak from another hat before exporting to weld them together.

Suitable boots are Violette by Kony. Plenty of jackets in the store. Two outfits to check out are OOts Sanctuary and Frosty for an informal rider. There is a good set of gloves in the Military Girl by Hongyu

Poser 11 , 180Gb in 8 Runtimes, PaintShop Pro 9
Windows 7 64 bit, Avast AV, Comodo Firewall
Intel Q9550 Quad Core cpu,  16Gb RAM, 250Gb + 250Gb +160Gb HD, GeForce GTX 1060