I just bought today (I guess I'm the first customer in the world to have them as they will be on sale at Euromilitaire tomorrow saturday) the new Best Value Models kit "BTR-50 Tsahal 1970" reference number 35070. It's a complete package with all the needed parts from a Trumpeter Polish PT-76 plus resin parts and some PE for the machine gun mounts (the PE is actually recycled from an Azimut IDF Centurion conversion set).
The conversion is sold under the Azimut brand and has resin parts only, "BTR-50 PK" conversion, reference 35112.
I don't remember exact prices as I bought other stuff at the same time but I think the conversion is around 45 Euros and the BVM kit is around 49 Euros.
Both look extremely good, clean, sharp, detailed resin castings. I guess the Best Value Models kit is, as the name of the brand implies, best value as for the conversion you'll have to get a Trumpeter PT-76 base kit separately (the Polish version is recommended).
Those two references are not on the Azimut website yet, I think they will be sometimes next week.