Yes, I do get very dirty at work. Often times I'm covered in sawdust, cement, thinset, paint, or some adhesive. There is a blue scrubbing pad in the shower for a reason. Epoxy grout is a challenge to remove, followed closely by a quality (paint) primer.
We ordered an after market ladder on Amazon. The kit was pretty simple to install. Starcraft was happy to send an email with a measured drawing of the rear of the coach to show where the internal framing is located.