Raising the 'Blimp' for Wyo Dirt Roads

[fotozone]

Hi! I am getting the swing of this forum so here is a question. I need some advise. We live in Wyoming, do fly fishing anywhere, and pursue the perfect photo far from the maddening crowds. Our cabin is mile off the main road on a steep (in spots) and bumpy dirt road. We have a 22' Safari Sport single axle and my question is has anyone raised a AS to gain more clearance. I have been talking to a welder who will weld a 3 - 3.5" channel under our AS to raise it the 3 or so inches. Is this advisable? Any issues I have not considered? We have discussed how to get everything lined up and bolted back into place after the 'lift'. Thanks in advance for any input.... Tom