Fankit Models made the Oshkosh P-15 as model. Scale is 1/50. Model is from resin and available as kit and built. Yes price is high but do not forget it is a hand made model! Will look good next to the THW Oshkosh's.
http://www.fankitmodels.com click on Oshkosh too see the model

What do you think of the model?

Location: Netherlands

Nice looking, good detail. Completed model 440 Euros, kit from 240 Euros. Way to pricey for me.

Location: Augusta, GA