That wouldn't be too hard really, there are websites that sell that service. Given the size of the boards it might not even be very costly. I'll look into it tonight and see what I can find..
Might have to convert the image to some specific sort of design file, I haven't tried to order pcbs online before personally. That's a pretty trivial issue though. http://www.repairfaq.org/sam/ldartwrk.png
It's in that link.. doo eeet! I'd take 10 blanks right now if they were available.. There will always be a need for space for the large output resistor in series with the diode at high currents like 2-5A.
I always prefer flat options, so if that means making it one sided, I'd be okay with that. Adding a through-hole component makes the space the board takes up SO much bigger.
How about this, put both. Put layout for the smd one, and at the edge of the board put three holes for the through hole one. This will hardly use any more space, but allows the to220 for high power. And you can keep it two sided.
Just picked up the chemicals for etching. My plan is to etch the board as shown in the diagrams for the purposes of testing, hope to have a working prototype by the end of the week if I can manage.