Small H0 Truck models of the 1980s

[faraway]

I have serious problems to find smaller truck and delivery truck models correct for the timeframe 1980 - 1990.

The only one I could find is the Ford C from Athearn <!-- m --><a class="postlink" href="http://www.rd-hobby.de/shopping/catalog.php?id=377&item=46758">http://www.rd-hobby.de/shopping/catalog ... item=46758</a><!-- m -->
The F850 is used asa farm truck only <!-- m --><a class="postlink" href="http://www.rd-hobby.de/shopping/catalog.php?id=377&item=59768">http://www.rd-hobby.de/shopping/catalog ... item=59768</a><!-- m --> and not very useful on a urban layout.
The Walthers Scenemaster 4300 and 4900 are far to modern <!-- m --><a class="postlink" href="http://www.rd-hobby.de/shopping/catalog.php?id=2030&item=67766">http://www.rd-hobby.de/shopping/catalog ... item=67766</a><!-- m -->
I am not sure about the UPS delivery truck <!-- m --><a class="postlink" href="http://www.rd-hobby.de/shopping/catalog.php?id=1100&item=40336">http://www.rd-hobby.de/shopping/catalog ... item=40336</a><!-- m -->

Is there a web page with photos and date of built for trucks in general? I have serious lack of skill in that area and need some online help to lookup some facts about various trucks.

What is correct timeframe to use these models?

a. a plumbers truck
b. U Hauls truck to lease
c. Perkins Bakery delivery truck