Nice mounting bracket. I geuss you have several more below to hold the pipe from wobbling around? I think I read in other posts your adding guy wires also?

I do think perhaps I would not bothered sealing things up so well myself. But the location a genny will be flown has alot to do with that. Sealing it up is good to keep salty air out if near a Ocean or such, I'm not though.
 Unless there is a reason to seal one up, I would prefer to let air pass through it for better cooling myself. Seal up the bearings if needed but sealed bearings should be fine as is I think.

Neat Idea for the Anti-cogging device. I never tried to build one. I like that idea in general and it gives me an idea how to decog a motor and add a light I wanted in the rotor hub at same time.

Great work, really nice genny and blades, I hope it makes power for you for a long time to come.
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nothing to lose