Is your door totally missing or just rotted out? We have had many here rebuild the door and reuse the skin and they can help on how they did it.
If you have nothing, they do sell the new door and frame. Many of the RV salvage places have them. I do not know if there are any up your way, there are many in the Elkhart IN area and I'm sure will ship them. Cost may be an issue on the shipping.
An RV dealer can order you a door. Just give them the size of the opening, take the frame off. It does not have to be a Sunline door.
Hope this helps.
If you want some of the name/numbers of the Elkhart places, let me know. I have been to several of them.
Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
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