1995 water damage rebuild
 

I am rebuilding a 1995 towlite for my daughter. It is definitely interesting we have rebuilt one wall due to water damage replaced all of the guide blocks and rails. Working today on cable adjustment but I do have a question and worry wondering if anyone can help? The left side of the front door is sagging. It doesn’t seem the bolts or hinges are loose. It seems the top body sits about 1/4 inch lower than the rest of the camper on the guide rail. Any suggestions for a fix? Also does anyone know what windows were used this year I need new top seals for three of them due to shrinkage?