I did want to spray foam the whole van, however I seriously miscalculated how much would be needed and I ran out. I had to use xtratherm and single tin foam to get the job done. I am still not 100% happy about this and will be pulling quite a bit of the van out and re-insulating. I would strongly recommend the two pack PU insulation.
The roof is buckled where the previous owner had used it for heavy loads with out a roof rack. didn’t notice until doing this.