Good to hear you got the steering sorted .....I haven't got there yet.
I am going to Use the KAVAN tank that I have it is the best fit, I will post Photo's of my servo install once It is sorted.
Are you going to use a 1:2 or 1:1 ratio on your bell cranks?
Solar film hinges thats a good Idea

no gap on ailerons ...Thanks
Johnkpap