As indicated in a previous update, I've gone with the panniers but they will be positioned further out along the wing than the Wellesley had them, this due to their proximity to the 'Wellington' engine nacelles. Panniers about to have their paint stripped off. All of the Airfix Blenheim engine parts are attached - chopped out sections of the spindly spiky exhausts (intended for the French option - don't forget I'm talking the original Airfix Blenheim not the current one) to form fuel vents and added them to the undersides of the wings.
Discovered the source part-build's rear Lewis Gun is missing - thankfully I've a pair of Aeroclub items (far superior to the plastic original anyway), so will use one of those.
Close to staring the painting - eeek!