With another 6 months till the end of this Campaign, I decided to start another build.
I felt like building some Bulgarian engineer vehicle, based on T-54/55.
Studied some refferencies and this is what I found:
The BLG-60(BrueckenLegeGeraet-60) was an East German tank bridgelayer, mounted on Czechoslovakian T-55 chassy.
The MT-55 tank bridgelayer, based on the same chassy-but using sligthly different bridge-was built entirely in Czechoslovakia.
Poland also produced a tank bridgelayer. Designated BLG-67, it combined a Bumar Labedy T-55 chassy with the East German scissor bridge,that was also used in BG-60M2.
Should you already think this is a bit complicated, wait to read the following:
Bulgarian People's Army 24th Tank Brigade received tanka bridgelayers as follows:
in 1972- MT-55(Czechoslovakian tank bridgelayer, used also by the Soviet Union);
in 1984- all available MT-55's were upgraded to BLG-60M2 in East Germany.
I found a Bulgarian Manual for BLG-67, printed in 1974(unfortunately I cannot get my hands on it right now-the seller seems to be on vacation):

which proves the Polish tank bridgelayer was also in the inventory.
In other words- my country bought bridgelaying equipment from all possible WP suppliers...What exactly was I supposed to build?
After spending 2 days collecting information, I decided I'll build an East German made BLG-60M2 in service with the Bulgarian Army:

My BLG-60M2 will be from the early 1980's.
I'll use the super old Trumpeter's T-55 kit as a starting point, will install some leftover parts from the Takom's T-55AM2B, I built as a Soviet T-55AM with Kladivo FCS(another Bulgarian People's Army hybrid), and hope to make good use of some optional parts from MiniArt's T-54B interior kit.
The scissor bridge, its laying arm and some parts/components on the upper hull will be scratchbuilt.
Here is my starting picture: