Here's my surgically shortened Asiatam rolling lower Hull/chassis:

- Asiatam PZ IV rolling metal hull/chassis

- Asiatam Pz IV metal hull
But here it is serving as the basis for a Hybrid Panzer IV; a combination that avoids two of the three major errors (Return Roller and Engine deck slope), and only needs a spot of sawing to lower the lid of the Turret storage bin...

- Tamiya/HL/Taigen /Asiatam hybrid Pz IV
and another peek:

- Panzer IV hybrid
The hybrid consists of: Asiatam metal hull, with Asiatam/Taigen metal running gear; Tamiya ausf.J upper hull, and HL/Taigen airsoft Turret (ausf F2/G). This is one way of building a fairly accurate Pz IV, although the amount of additional detailing needed, (as per desired version type), to make an acceptable model remains a personal choice- based on finances, level of modelling fanaticism, and of course the availability of parts. Altogether, it still works out cheaper than the boxed Tamiya full-option
package.

"Get your facts first, and then you can distort them as much as you please"- Mark Twain.