Thanks for the compliment! The snowblower weighs 340LBS no gussets needed. I left room to add gussets if I needed them, but I will not need them. I designed the wheel mounts for strength, if you look at the wheel blocks I used the router on the wheel mounts so I can put screws in on both sides for strength. I made the cart out of Oak there is no flexing at all it is very rigid. I will take some pics when I get it all done and have the snow blower on it.
Well thought out, well done.