Where I'll be living, insulation is a MUST. I used R38 insulation (the strongest available at Home Depot) for the front area where I'll be sleeping and R30 for the rest. This first pic is what happens when a piece of installed insulation meets the need to rewire an electrical outlet.
In order to hold the insulation in place, since the dimensions of the trailer forced the use of non-standard framing (and the thickness of the insulation), I had to use LOTS of extrastrength Gorilla Tape and Arrow T50 staples. I used a whole box of 500 T50 staples and maybe 10 big rolls of Tough and Wide Gorilla Tape.,
This extra wide space between two studs required the diagonal installation of a piece of R38. This left two big gaps of uninsulated space, which were eventually filled in with leftover scrap pieces of insulation.
The roof curve in the front was another challenge. Ultimately I had to staple the insulation to the wall and leave the curve itself uninsulated.
An overview of the left back wall. R30 was used here.
Overview of the right wall and back wall. Again, R30 was used due to cost concerns.