I have the trumpeter model of the BJ 212, and it doesn't look much different from a UAZ 469... but I know there are differences...
What are they ?
How do I change the 1st into the 2nd ?

Here are some drawings you could use as a starting point...


Sorry, nothing for the rear...
BTW I'm not sure that the game is worth the candle...Maybe you could kitbash your kit with the MW kit of the UAZ
Frenchy

I have to agree with Frenchy. The BJ-212 and the UAZ 469 are not relly that close. It would be better to get the Model Works kit of the UAZ and clean it up, it i really not that bad. The MW kit can usually be found on Ebay for about $15. I have one. It is not that bad. It has full engine and running gear detail/parts, vinyl tires, etc. It has some flash and the plastic is kinda soft, about on par with other East European kits. It is the way I would go. I looked at doing the same with the BJ and realized the diferences and bought the MW UAZ instead.

The BJ has many different parts than the UAZ, most notably is that the entire front end is diferent, along with most of the body lines.

BJ-212




UAZ 469



The only real similarity is the cut and angle of the doors. Other than that, they are quite diferent.

Thanks for your fast answers !
Well, it looks like I'll have to get myself the MW kit...

It's currently available at Jadar-Hobby for 14.85 Euros instead of 16.50 ( -10% discount for Christmas !)
http://jadarhobby.home.pl/advanced_search_result.php?currency=EUR&keywords=uaz&sort=2at

Frenchy

And not too far from where I live, it's at 15 euros at Azimuth.

At least you can save money on the postage

Frenchy