Foward galley instead of rear hatch possible?

I'm still in the planning stage, and have been reading a great deal of cool and useful info. I'm leaning towards a non traditional design using a suv shell as a donor. 5x10 is my desired dimensions, with 8' being the camper, then a 2 foot storage box for tools and gear separate from the camper itself. here's a pic of a similar build by a fella in Australia. I'm in NY.
If I use the tub, I'd have a waterproof door and hatch setup, and if I could put the galley in the forward section I could use one of those suv rear hatch tents and really increase my space
I'm thinking my tongue weight may be way too high if I do this though. I'm thinking of a door on each side (in front of the suv doors-where you see the solid panel in the example pic), one with a slide out galley setup, the other side would be a holding area for a composting toilet/ propane shower, and be able to hold the a/c. Would all that stuff up front coupled with my desire for a large storage box with all my gear put way too much weight on the tongue?
I can deal with a traditional rear galley but really like the idea of the added space the suv tent would offer attached to the rear=less need for a/c I'm sure. Input is appreciated. Thanks!

If I use the tub, I'd have a waterproof door and hatch setup, and if I could put the galley in the forward section I could use one of those suv rear hatch tents and really increase my space

I'm thinking my tongue weight may be way too high if I do this though. I'm thinking of a door on each side (in front of the suv doors-where you see the solid panel in the example pic), one with a slide out galley setup, the other side would be a holding area for a composting toilet/ propane shower, and be able to hold the a/c. Would all that stuff up front coupled with my desire for a large storage box with all my gear put way too much weight on the tongue?
I can deal with a traditional rear galley but really like the idea of the added space the suv tent would offer attached to the rear=less need for a/c I'm sure. Input is appreciated. Thanks!