Is this a 37 gal All-Glass? If it is, then a 10 gal tank won't fit under the store bought stand, you will need to make a custom stand.
With regard to your pic, I am not sure what you are looking for. I think....
The first baffles where the water enters the sump should be closer together. Spacing like that is just wasting too much space in my opinion. Put them about an inch apart. Also, the last bubble trap is not necessary in my opinion either. The first set of bubble traps should eliminate all the microbubbles.
It would help to know what you plan on putting where in the sump. Where will the skimmer go? How about the heater? Are you also going to have a refugium in there? This added info will help.
I am currently doing a build on a 37 gal All-Glass. I have a sump design in my thread that I am happy with.
The first design, was similiar to yours, I wasn't overly happy with. But again, it all depends on the goals of your sump. I wanted my skimmer and heater down there, along with my skimmer. The sump flows
left to right like this:
Drain(Skimmer) -->Refugium--> Return
I used a 20 gal tall and did a lot of testing before I came up with a design that I liked. This image flows
right to left like this:
Drain(Skimmer)-->Refugium-->Return.
The pump will be behind the eggcrate which will keep the macro algae out of the pump. This design gave me more refugium room and a greater amount of water volume for evaporation before topoffs would be necessary. My original design had such a small return area that I would have been topping off twice a day and the location of the tank does not allow for an auto-topoff.
Here is a link to my build if you are interested.
http://www.reefcentral.com/forums/showthread.php?s=&threadid=962156&perpage=25&pagenumber=1