Installing New Front Window

[64Overlander]

I have begun the process to rehab this trailer. When I bought it it had no front window other than bits and pieces of broken glass in the window frame. The bits and pieces of broken glass served as a template for the new glass. I had tempered glass replaced in the original frame .125 in thick with butyl glazing tape and weather stripping the Hehr Hall-Mark 12 Glazing Strip from VTS. It looked alot better installed than did the 6mil poly plastic I had taped in place. One of the arms of my rock guard is missing the extension arm, does anyone have any ideas where to get a replacement? The rock guard seems to be a whole other animal. I need some details on it, I'll try and post some pictures.
Thanks

[64Overlander]

I'm currently trying to replace the vent cover for the rear vent and the astrodome. The Ladue lifters are currently stuck. I have soaked them in WD 40 for 3-4 days with no success. Does anyone have any other ideas? Does anyone know of a source to replace the original Ladue lifters? I'm trying to stay with the original parts if possible.
Thanks