[Frankie4Fingers]

The best way I have found to remove a fan hub is with an impact gun. In your situation, it might be tough without removing the radiator to do that. Only option I can think of is the tite reach, if it will fit in there but you may risk damaging the radiator core if you are not careful. 

The tite reach I use is the 1/2" professional, its designed to be used with an impact. I use my 3/4" drive Milwaukee impact on it all the time and have yet to break it. 

https://tite-reach.com/products/1-2-prof...ion-wrench

I just went out and looked at my coach, and you could also potentially unbolt the entire fan steel support structure. Looks like to me it has two bolts in the top and 2 in the bottom. Then you might be able to move the whole fan assembly where you can get an impact in there to remove the nut on the fan hub. If you remove the hydraulic lines, you may be able to pull the whole assembly out. Just have some plugs ready as Richard mentioned you do not want to empty your whole hydraulic system.

Hmmm a lot of good thoughts.

As far as the hydraulic system goes... I already had that happen once.  Within the first 5 miles of buying the coach, one of the high pressure lines split and sprayed all of the transmission fluid from the system all over the engine bay.  I was smoking like I had a fire and pulled over to find a very small hole in one of the lines.  Needless to say, I had to replace all of the fluid and patch the line.

So far, I have had a few pretty rough breaks in my trip to just get the coach home to be registered and titled.  I am only about half way home right now and it has been 3 weeks.

I am going to try the impact wrench method to get it off.  That seems like the best thing to try.

Should I just go ahead and spend the 600+ to get the replacement fan blades?

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The best way I have found to remove a fan hub is with an impact gun. In your situation, it might be tough without removing the radiator to do that. Only option I can think of is the tite reach, if it will fit in there but you may risk damaging the radiator core if you are not careful. 

The tite reach I use is the 1/2" professional, its designed to be used with an impact. I use my 3/4" drive Milwaukee impact on it all the time and have yet to break it. 

https://tite-reach.com/products/1-2-prof...ion-wrench

I just went out and looked at my coach, and you could also potentially unbolt the entire fan steel support structure. Looks like to me it has two bolts in the top and 2 in the bottom. Then you might be able to move the whole fan assembly where you can get an impact in there to remove the nut on the fan hub. If you remove the hydraulic lines, you may be able to pull the whole assembly out. Just have some plugs ready as Richard mentioned you do not want to empty your whole hydraulic system.

Separate question... do you know if these coaches come with an air line for air tools?