That d-technic is awesome. It is a czechpoint rifle. The extras there add up to real cash, with the optics rail, solid stock, and everything.
The difference is the d-technic is a superior rifle, it's up to you to decide if it's 1000 dollars worth of superior.
I have A very low serial number D-technic that I love, now that I have the vz2008 on the way I will be able to compare side by side.
Unless you get a rifle with a specific problem, or a real lemon, I believe you might be very impressed. While the fit, finish, and material details (like chrome lined barrel, piston, etc.) are not at the same level, for $400 it's still a VZ.58 at its core. For about the price of one CSA, you can get 3 VZ2008s and drag one of them around behind your car or truck.
That D-Technic would make a really nice addition to my collection - too bad for me its such a long auction -- the price will probably double. IMO the Czechpoint rifles esp, the older D-Technics, are truer to the original VZ.58 than most other variants. While the new Czechpoints VZ.58 Classic Sporters are sweet and they still have new chrome lined barrels, the older D-Technics will still hold value with collectors as one of the original variants. Having said that I believe the OOW VZ2000 semi-auto only variant (with drastically modified receiver) was the first VZ.58 design to get BATF approval in the US -- but I could likely be wrong about that.