Thanks! I just checked the material thickness. It's 0.023inches, that's about 24 or 25 gage. So, it looks like I'll have to plan on some extra backing for the mags. I was hoping to keep the outside diameter nice and clean/clear. If there ends up needing a RPM change, the belt is still good for this dryer, and I could make another pulley to run it any RPM needed. I even wanted to keep my option open to run it with a solar water heated/ammonia engine.
     The drawing was just an 1st sketch. I'll remember that about having the coils sized/spaced to be able to overlap 2 mags at once. Thanks again. If you notice, even the mags I drew were not the size of the two I mentioned.
     If I end up having to put too much backing on the mags, it's going to eliminate what I had planned for a future inner row of mags. I have another "pan" just like the 24" one except 17 3/4" I.D.  If spacing requires it though, I could always use the smaller one. OR...possibly a 1 x 2 x 1/2" mag mounted length-wise on the dia.???
     You mentioned a possible clearance problem between the stator & rotor. If needed, I had 6 bearings 1/2" dia. x 1/4" wide I could mount on the stator so they stuck up just enough to provide protection to the stator if the thing got wild & the rotor wobbled around.
     Overlapping coils I thought of, and is possible, but I think might be more hassle. Simply because I'm having a friend make the stator, and it would have to be twice as thick. There's always the possibility we're going to have to make more than one anyway. It also runs into more problems when considering a future inner row of mags.
     I was hoping the coils could be used as-is, or probably removing some windings. Did I mention the initial sketch/plan was using the coils from a cieling fan? I knew from what research I've done here already, that I'd end up with higher voltage & less amps. Since what I have to run from the genny to indoors is 14-3 wire, I wasn't concerned with higher voltage, and converting it once inside. I just measured the wire size on the coils though. Bummer! It's 0.014" or about 27ga. !!! wayyy to small, I think!
     I'm not worried about making coils, so it looks like I might consider an oblong shape, possibly 3/4inch tall, by 1 1/2 long. Easier to overlap the mags that way.

     Well, I appreciate your input & support! I'm going back to look at mags, and start some updated drawings!