How to convert the following recipe
How do I convert the following recipe I got from a german baking forum. As quite usual in Germany they use SD and commercial yeast. Since it is too difficult without a proof box to hold the temperature @ 80 degree for 16 hours I like to bake this bread using only yeast. I am sure I can do it with a preferment but I'd like to have some input from this knowledgeable forum.
Haferflocken Brot (Oat bread)
SD
85gr BF
85gr water
9gr. starter
mix and let ferment for 16 hours@80 [1] F
Soaker
300gr. oats roasted
600gr hot water
mix and let sit for 16 hours at room temp.
Dough:
Mix SD and soaker
475gr BF
120gr Rye flour
200 gr. Water
21 gr Salt
15gr. yeast
1 Tbsp Malt or Molasses
I have done this bread according to the recipe. ( I posted a pic, I think "German Oat meal bread)I like it very much. It is very moist und the oat flavour is wonderful. Thanks for your input.