Excerpt from my current Dio Build thread on Diorama Forum (~ ! Clash in Tunisia ! ~) , posted here so I might get some constructive comments from some of you Artillery Guru's pre-paint
My fieldpiece is built,and I added just a few modifications, namely, empty strap for the shovel, as I thought it would be in use 
Added a few bullet dings to the shield while I was there. Most pix of the Pak40 show shovel missing*mine wil be nearby in the dirt) ~ See for example on the pak40 Robin Buckland recently photo'ed 
And on another one 
I really fancy that Camo! It may have some infuence on my paintjob(perhaps a gun being sent to Italy was re-directed to theatre?)Sounds like a likely story to me....eh?
The kit of course has one of the typical shovels with moulded-on clasps, so I filled the mounting holes with styrene rod, and cut & bent some new parts from Photo-Etch scrap.
Also, I added in these spacers between the shields(most striking omition to the kit, to me) See here 
Just some tiny bits of styrene rod 
Question : Can anyone identify this piece of gear for me : 
Almost forgot, filled these injector dings (hadn't seen this pointed out before, and not likely to be seen after placement, but to play it safe..... 
I also added a screw to fix the gun to the carriage, not just for removal for painting, but so I can adjust the gun's aiming point at final placement 
Not many injector pings,and NO flash or parting lines in the kit, just lots of pour 'nodes' to removed (maybe 300 of them !) Nice to build a kit without parting lines !!!
There we have The Dragon Pak 40
~See the Dio thread if you're interested in what else is going into this project and thanks for takin' a look..........Indy