Hey!
Very cool conversion! I love LR :ylsmoke:
Just a little info about Linseed oil:
I have been operating
www.ecofurniture.ca for some years and have used all types of so called "natural" finishes. First it is very difficult to find true non-toxic oils! Most of them still have heavy metal driers in them (doesn't have to be mentioned on the can!). Oil and waxes need at least 3-4 months of drying time to be 80% resistant to water stains. Unlike other "toxic" finishes like urethane, oils and waxes don't make the surface durable! They are very easy to scratch. Another side effect is that Linseed oil (like any other plant based oil) will go rancid after a while in your vehicle. That only because of the higher temperatures it will develop inside while exposed to the sun.
Anyhow, for furniture inside your home, these natural finishes are great!
In your case (and what I did with mine) was to go with formaldehyde free, FSC certified pre-finished maple ply. Commonly used for kitchen cabinets. To protect the edges, I would either recommend a 1/8 vinyl edge or some aluminum profiles.
If you have to finish, use the products from AFM Safecoat. The Polyureseal is incredible durable.
Anyhow, I'm looking forward following your progress and hope that my info was helping a bit.
Cheers,
Andreas