Need to replace the water dispenser line hotpoint side-by-side
I have a Hotpoint HSS25GFPAWW side-by-side refrigerator. It has what appears to be a well-known problem with the line inside the freezer door leading to the water dispenser freezing. After going through all of the solutions to keep the line clear it turns out one of the solutions - using a heat gun or a hair dryer to thaw the line out - actually damaged the line itself. At least that is how it appears. I was able to find a replacement line; I got it from a Hotpoint dealer along with the blue 5/16" John Guest connector that comes with it, all for about $25.00.
In going through the steps to try to fix this problem I discovered that I have no access to the space behind the water dispenser as it looks like it is sealed into the door. I can get to both ends of the line but I'm not sure if there is a safe way to access the area inside the door without damaging the door itself.
Two things I don't want to do: I don't want to get GE service involved as the last time I did that (when these problems started) the service technician was in my house for a total of 20 minutes and the visit cost me $195.00. The other thing I don't want to do is replace the door as I don't think that should have to happen. After all, if the parts are available, there has got to be a way to replace them.
Any ideas, solutions, feedback, etc. would be extremely helpful.