Russian flamer and naval guns

Some weeks ago I won an action on tradera and 
bought three moulds to cast tinsoldiers.
The primary goal with this buy is to use the
mould with the gun separated to make
my own naval guns.The gunplacing on small
wheels will be scratchbuilt in thin wood.
I will probably use mdf for this.
I have made a small sketch to show how my
naval guns would look like.
I think the moulds is quite useful for this project 
and I will also cast some complete guns with
big wheels for my naval-fort.
Three of these rubbermoulds from Prince August
cost me only 8 Euros. The swedish rider from
the 18th century could also be useful for my
Great-northern war project.
Next thing is that I have completed my conversion
of two russian flamers to Secrets of the third reich.
I am quite satisfied with these and they will be
a real menance on the gaming table in addition
to my russian rifle-platoon.