I have found that several small boxes are much more useful than a couple large boxes. Easier to pack, lighter to handle and can also serve as furniture. I made my last box with the cross-strips on the lid on the inside. Works just as well and you have more usable flat surface. Just remember to cut the cross-strips a bit shorter and maybe bevel the ends.
Personally, I would save the expensive oak for more formal boxes or other projects and use cheap pine/fir for the "kick around" gear/supply boxes.....