Lebowski, that would be amazing... definitely a fan of your work. But, I will say.... SMD is not so hard to solder... maybe the insanely small stuff, but anything from 0805 resistors, and up is not bad at all (especially 1206 and above, but 0805 isn't bad)... as well as comparable sizes of other components. With something like the $50 TS100, a flux pen, and a pair of decent tweezers (honestly I was using $2 ones on my last SMD board, which were good enough), it wouldn't be hard at all.... I actually felt it was easier to do than some of the thru hole boards I've soldered, and I'm being honest. I don't have a microscope either... tho I did make use out of an articulating LED magnifying glass + light, it helped a lot.
Anyway... my point being, you should maybe consider utilizing some of the larger SMD components... they are actually surprisingly easy to solder, they are very cheap, and could probably reduce the board size by close to half. I think the 0603, and especially the 0402 and smaller stuff is where it gets much harder to do by hand... I know there is always solder paste, but I have yet to use the stuff.... if I was producing many of the same board I might, but for 1 off DIY stuff, I do it by hand.
TBH, I was completely afraid of doing SMD soldering till I saw this video: https://www.youtube.com/watch?v=b9FC9fAlfQE
...I personally don't really use the wipe method exactly... but still learned a lot. He uses a monster size iron/tip for pretty damn small components, without any problems. After watching the video, I no longer use the stock round tips... and realized the tip can be much larger than each individual pin you are welding, but with flux and a light touch, the stuff practically solders itself, as well as fixes any minor alignment issues almost automatically (it's so strange the first time you do it... but my first SMD board came out not only looking good, but functioning perfect on the first try).
Either way... I would be beyond happy if you designed a power board to go with this board... whether it's 100% thru hole or not. But I think it could really benefit if it was partially SMD.