I actually mounted and bolted up the wheel/tire combo to determine the exact spacer size I will need.
The plan as of the last few days was to look into cutting the fender down the center and add in sheet metal to make it wide enough to cover the big tires.
The current fender arch won't work with the new tire diameter, so it looks like I'll have to have a fab shop custom make a set. The local trailer shop said its beyond what they can order or build.
My 5 year old daughter really makes the tires/trailer look HUGE...lol
Looks like 2" spacers will cover it instead of 3".
The stock 80 bottle jack is fully extended, and won't even reach the axle anymore.