Hi Ian,
Many thanks for your prompt and informative reply. You're correct...I seem to be dragging the chain on my Lanc build, but I am actually making progress, believe it or not. I have now bought my TN plans, Depron sheeting, glues, motors, props, ESCs etc all of which are to hand while I get to grips with building my Roaring 60 Depron test "mule". Having come to the hobby late in life, as a retiree, I find I am taking a bit longer with everything, but I'm getting there!
Another issue I will face here in Australia is a "Heavy Model" certification process which applies to all models over 7.5kg and as Depron is quite an unusual build material here, I'm going to have to be a little more conservative with servos etc and will fit larger, higher torque, standard servos to avoid a debate with official inspectors who cannot look past physical servo size on a completed 134" model. LOL.
Like you, I will not build the Dam Buster version, but instead of operating bomb doors, I have bought the Canadian Shockwave 2 sound module, which with 106+Db of multi Merlin sound, is a real head turner and will add to the presence of this great model! This means I will have to work out how to accomodate both your excellent battery "drawer" concept and two speakers mounted under the fuselage as far forward as possible...another challenge.
I will keep you posted with photos when I get underway................
Best wishes,
Ian.