Hey Karen, about the gaps between window and frame:
you need to line up the vertices of the frame and window:

which you have at the bottom, but not at the sides. Should be something like this (simplified):

I hope this makes sense.
I messed up my OS and lost the Discord, so I’ll have to re-connect somehow and thinking about how complicated that was last time…Can’t even remember how I got it working eventually…
Any way, It’s getting late here now…I’ll try and get Discord working again, tomorrow..That’ll be a lot easier to trouble shoot and help modelling…
Hinges shouldn’t be a problem; we’ll get those made tomorrow if you didn’t sort them out already by then;)