Steadfast;
Since you're stuck at the 40' pole size, get it up there if you don't already have the 30' built, that extra 10 feet could make all the difference.
I'm curious about the blades you're going to be using and would really like to know how they work out.
I've had some rather heated discussions with the MW&S people in the past, when at localized AE shows.
Since you know these blades are for higher 20mph+ winds you might have problems getting them to spin up fast enough. BUT they will work, and could give you time to maybe craft some blades for your specific site (i.e. lower winds) try for blades in the 15mph range.
IF you happen to have a home-based weather station and can get readings of where your genny is going be, that would be a good start too to find what yours is really seeing on an average.
Then purchase of craft some blades for those ranges.
I would at this point in time keep the solar and wind separate, of course both connected to the batteries, but let the controller handle anything coming into the batteries from the panels only.
Next would be to invest in another set or those batteries as soon as you can.
ChrisO stated it very, correctly about the short amount of time you'll have before you start to drag those batteries down too low.
Understanding that when the system is NOT is use you should have time for the system to catch up on charge.
Another item you might invest in (when you have a spare dime:) ) is a Watt's UP meter. Handy little device, and good for keeping an eye on the incoming PV and a quick digital view on battery level.
This I state since I couldn't find the post about which controller you currently have for them.
Best of luck!!
I believe Rich H, is closer to you that me in St.L so reach out to him, he has tons of knowledge concerning the area, and he's not too afraid to climb up on a tin roof in the pouring rain
.
Keep us up to date!!
Bruce S
PS> When you can find them for free or dirt cheap, you might grab some other smaller sized inverters that way you can turn on only the size you need and not waste power on the larger ones when you don't need to.