Sigh, OK if you insist on this one! My Recommendations:
Subsitute some spruce longerons through the fuselage (maybe one on the bottom of the fuse and another through the middle in place of the balsa. This will add strength behind the wing where these profiles tend to break. You can save back the added weight by eliminating the lite-ply wing tips. Just leave them off and cover over with Mono/Ultra cote.

Beef up the main landing gear area with some plywood pie shaped pieces laminated into the structure. The fuse can break there too.

Add some wood on the top of the canopy area where you think you will be grabbing it to carry from your vehicle to the field and back, etc.

I would cover the fuse and wing before gluing the two together. I've done it both ways and prefer covering first. I needed four arms/hands trying to cover the whole assembled airplane over a week's time!!

While flying if you get a dead stick point the nose down for the runway at about a 30 degree angle and when just over the grass do you flair. THese thick wing designs don't really glide exceptionally well. ONe good thing is the LG bends back quite easily.

Picture of my bird: