I bought a 2019 R-23 from the original owner. It has a head door that is a single door, does not open when all V-Berth pads are in. I have a marina mate with a 2016 R-23 and he has a bi-fold door on the head, which works fine with V-berth configured with all pads for "two together". He was surprised Ranger Tugs installed a single door that does not operate when in "two together" mode. Are bi-fold doors available for a swap out without making a project out of it? Thanks!