The vehicle and tracks were painted with Testors Model Master acrylics. The tiger is painted modern armor sand and the tracks were airbrushed earth red (#4707) straight out of the bottle. When I hand painted the Dragon Elefant tracks with MM enamels, the tracks went tacky like you mentioned. So, I learned that the best way to paint these vinyl tracks is with acrylics and an airbrush. Couple of zaps and they're done.
I use Testors enamel rubber for the wash over the vehicle and other Testors MM enamels for the detail items like the shovel and ax. The mortar round was painted Testors OD from the spray can (cheap type found in Wal-Mart). The instructions call for dark green, it looked close enough to me.
These Dragon armor kits are relatively cheap. They retail for $8.95 around here and IPMS members get 10% off at local shops, so they run me about $8 a pop. Best things about these kits is that:
(1) They are cheap.
(2) I build them (no great unbuilt piles of Braille kits) and finish them.
(3) They build quickly so I don't lose interest in them.
(4) Not a lot of aftermarket items available so you don't feel the need to buy the $20 Eduard PE set, $30 Fruil tracks and $7 Jordi Rubio barrel.
(5) (Most important) They are fun to build.
As far as the AMC Bergetiger, I won the Revell Tiger ausf. E and troops on eBay for $5 but since I have the Revell Tiger I ausf. H, I wanted to do something different with it. That's why I bought the Bergetiger on sale at Squadron.com. I knew before hand that I would have to use the Revell late Tiger to make the Bergetiger acceptable.