I'm happy to show you our latest Spanish Civil War product at 1/72 scale: the Ansaldo Cannone da 105/28, widely used by Italy in WW2 - and SCW too, of course!
This new model is entirely white metal cast and consists of just 5 parts - these including the characteristic rubber tire wheels it was given since 1937. Wooden spoked wheels might be used for it too - here below you have a sample with such wheels installed.