I'm in the midst of reading the book, "Winged Crusaders", which tell the history of RAF's 14 Squadron from its initial formation until the end of WWII:
https://www.pen-and-sword.co.uk/Winged-Crusaders-Hardback/p/3627I'm at the point in the book where the Squadron has Wellesleys and it's quite interesting to read what that aircraft was like.
At one point, it mentions how they made a field modification to increase the defenses of the aircraft by engineering gun brackets that could fit in the frames of the fuselage windows at the navigator's station. It was quite an effective modification that increased the aircraft's survivability until the squadron was re-equiped with Blenheims.
They also removed the bomb pod doors permanently with no ill effect on the performance of the aircraft.
Putting it in Coastal Command colours, as a someone mentioned earlier, wouldn't be too far off the mark. The Wellesley had very good range and the book details how 14 Squadron trained for coastal patrol during their Wellesley period.
