I don't know about B-1700 but our little 13 foot Scamperoonie will go where ever the TUG goes. I have had to chain up when the snow was too deep, and have had to turn around on dead end logging roads, where the trailer was dropped, swung around on the tongue wheel and re hitched to avoid a two mile back up. Be sure to keep wheel chocks handy when unhitching on uneven ground.
One thing I did when we remodeled two years ago was to replace all screws holding the body to the frame with new larger stainless #4 Self Tappers and big washers. On the corners, through frame bolts were used.
We have towed the Scamperoonie over the last fifteen years on 2 to 4 thousand miles a year of logging roads, clear cut skidder trails, and where ever there was no signs saying we could not go. I have even towed the trailer over Mosquito Pass in Colorado, 14,185 feet outside of Leadville, with eight miles of low range, first gear with a four banger Toyota 4x4. One of the roughest, gnarlyest roads I have ever personally driven, let alone pulling a trailer. That was with the original axle
With a new 2300 LB Dexter, trailing arm, which required a subframe to be built, the trailer rides even better. But this is for a rig that fully packed will not go more than 1800 LBS.
These fiberglass eggs are much more durable than stick and panel trailers as the shell is unitized and moves with the frame. I have a pal with 16 Scamp
, and he can go just about anywhere ever he wants, the key is to slow down when it is bumpy and rough.
Yes skid plates might be in order, go at least 1/8 inch steel or 3/16 alum as the last thing you want is tearing on a rock or sharp stump.
I might avoid going too heavy on the axle
and spring rating, as then it gets so stiff, the tires
and trailer take the pounding. Same with tires
, taller may not hurt and will increase ground clearance, but if they are too heavy rated, and hard, then your trailer takes the beating again, loosening all the fasteners, rearranging everthing in the cabinets and drawers, breaking fittings loose from vibration.
Good luck on your quest.