Not sure I can find a photo (I'll post later if I can) but one helpful mod I made to mine was to replace the tiny almost useless tool box with one that fits the whole space behind the operator's seat. I did it from scratch in a welding class I took with access to big press brakes and shears etc but after all was said and done, I noticed that AgriSupply sells an almost identically sized metal toolbox for cheap money that could easily be bolted into place. Just use some big washers or backing plate to spread the load. Mine is 12g and I imagine the AgriSupply is probably 18g or 20g so might need a bit more support. If I were to do it again I'd use 14g or even 16g. 12 was overkill.
The new size tool box allows me to keep big wrenches and hammer and pliers and shackles and pins etc as well as other stuff that would never fit into the stock toolbox. Much happier with it. Doesn't interfere with either the seat or 3pt etc. I copied the spring lid hold down exactly from the original.
my tool box is under the tractor on the driver side, dont you hide some of the lower back glass with your tool box in that area ? there is a lot of unused space in that area for sure, if you could post a picture
I had in mind to replace the plastic box with a military bullet box to put my chains in it with some tools but not on top priority since the plastic one is empty right now (not sure if the previous owner removed tooling from it, but I got the tractor with the box empty)