Adapter is not cheap. And then you need to buy a modern lock.
It means cutting a big hole in the door.
It means losing the recessed area around your lock, more cutting and some
fiberglass patching. At that point the area is thicker so the adapter may not work.
I like the look of your door with the recessed area, you would lose it..
The conversion plate looks like a... conversion plate. It’s great someone is doing it.
Once you start cutting there is no going back.
Right now an L400 NOS for $400 is about what I call the somewhat reasonable deal. I bought one this year for $300. I would call that a really good deal. Brand new in original box with keys. I’ve seen NOS ones as high as $800 asking. That is silly high. I’ve seen good used ones in good working order are more like $250. An adapter and modern lock is close to the price of a good used one (I have seen used ones at the price of just the adapter).
None
for sale right now. 3
sold in the last month.
Given the recent huge jump in value for these trailers, I think this isn’t outrageous.
Save a search on eBay and you will get notified when one comes
for sale. If it’s buy it now in your price range, DON’T wait! I sell on eBay regularly. I routinely get messages like this:” hey what happened to your listing. I was watching it and wanted to buy it”. My answer “it sold”. People tend to wait hoping an even better deal comes along. Meanwhile the good deal sells.