Hi John, Nice to hear from you, especially with your encouraging remarks.
I am enjoying this build as it's a pretty ship and plenty of detail.
Here is the bevel gearbox on R-S Components site. It was only 13 quid all in. (update) I think the is done on the original ship.
http://uk.rs-online.com/web/p/gearboxes/It is listed as
Huco L Gearbox, 1:1 Gear Ratio, 0.11 Nm Maximum Torque, 1000rpm Maximum Speed
I've just noticed it's out of stock at the moment. I must have had the last one in stock. I expect they will restock soon. I've been with them for the last 32 years. !!!!
keep in touch
ken