First of all...great work. This is simply ...staggering. Much thanks to you.
I long for the movement stage and here is all that I need. Entire portrayal.
I have one concern, however. The cost of the engines.
Is there any opportunity so I could supplant them by some different engines with comparative highlights? I'm not a specialist.
I have recently gotten an answer from Parvalux and the cost is an executioner (as you referenced - around 600 pounds each).