What are you trying to do with the amp? get more head room? are you preamping the fender to use this as a power section?
Using the Crown alone, I dont think you will be happy with it as a "guitar amp" without a preamp of some sort. I think 40 watts is great, I do the usual gig with no more than 50 watts.
The solid state is going to change the dynamics some, it is considered more "harsh" or less forgiving type of amp. Some are not very Warm sounding either. It also lacks the natural compression you would have at those higher volumes, that compression is something many guitarists see as a desirable trait of tube amps. High pick attacks will not compress, rather go on through like a bull. Depending on what I play, I use a compressor with my rig, not often, but it helps restore that balance to a degree. As for clipping the crown, they have all these limiters and such to avoid it in their PA gear, it may not be very musical clipping. I would find a transistor or mosfet guitar amp like a Mosvalve or Rocktron that are made to give you this tone. Just my 2cents. A Mcintosh is also a very musical SS amp as long as there are no limiters, and crap that hinder its clipping. The amps without all that technology would be an MC50 MC100 MC250 MC2100 MC2150 etc....
Hope that helps.... JB