The cowl is pretty short for the 50-16S Hacker too I think I used a shorter motor in mine, and got 6-7mm more overlap.

One of the magnets for the canopy did loosen, and was glued back with thin CA.

When you attach the cowl put some thick paper between cowl and nose upper part before drilling mounting holes. This is to ensure the fit don`t become too tight for the battery hatch/canopy. If the hatch seems to not enter check if you "split" the hatch againste the cowl!

I had to adjust the pull-pull for rudder outdoor when it is cold. Otherwise the cables become dangerous tight when I bring the plane from indoor to winter outdoor

My Angel is 5-6oz less than your estimate, if I remember correct. But I don`t use the wheel-pants... And run 5S5000.