Although not accurate, I suggest the following recipe.

Making JWA
1. Mix 3L canola oil(Vegetable and animal oils) + 3L KOH 20%.
2. Mix with an electric drill for perhaps 1 to 4 hours. (Until it becomes like mayonnaise, It could be over 4 hours.)
3. Let it aged for 3 days.
4. Add 10.5L of soft water and melt.

Making JS with KOH 20%
1. Mix Sulfur 99% 750g + KOH 20% 3L
2. Heat while stirring.
3. If sulfur is completely dissolved, it is 25% JS.

I wish you success. I want to continue to advise you guys.
It would be better if you could show the progress in a photo.  

made a big mistake.

im sorry.

I have NaOH not KOH.

so its really hard for me to get the KOH and NaOH in high concentration.
i have found available 19% NaOH. can you please help me with a formula where i can replace the puré NaOH and if possible the KOH for NaOH 19%.

hope to accomplish JWA and JS properly so we can start using in our crops.
soon ill have all the material to produce JWA and JS for first time and ill keep you posted of the process.
thanks so so much for your advise.

aloha y mahalo.

Nicolas Galapagos