3/8 smartside panels for exterior

Hi, new member here and glad I found this group. I have a popup in somewhat poor condition and wanted to make a canned ham out of it. The popup I have now is 7x14 and pretty heavy at 2700 with a slide. I have found almost no information about using 2x2 framing and 3/8 lp smartside panels. The 4x8 sheets seem like they would work nice and are fairly inexpensive. The stuff I am referring to is used on a lot of sheds and not t-111. Thanks for any insight.