seeking pine hugel inputs

Does anyone have any experience with or advice for building hugels with pine trees? BIG hugels. Something like the huge mamma jammas at Wheaton labs. I have an unlimited amount of pine now. Some hardwoods too. My main concern is acidity. Have been doing some reading about it & it seems not to be much of a problem once the wood has aged & decomposed some. I can help neutralize it with wood ash &/or agricultural lime if needed. So here's what I'm thinking ...

Dig a hole deep enough for one layer of green fully mature pine logs. Maybe 2 layers. Add a layer of the removed soil. Then a layer of slightly older pine logs. Then high quality top soil. As it gets taller & wider start using other woods along with even older pine. Plus some wood chips, mostly pine but with other woods mixed in. Along with plenty of topsoil to fill any gaps & between layers. This hugel will get exposure to some large commercial farmers, people with very large home gardens, as well as some influential people in the local ag & forestry industries. I need it to work to help change their more traditional way of doing things.

Is there any reason not to use mostly pine for this?

    So I was listening to one of Paul's podcasts and he said that he theorized that the reason that pine forest have such acidic soils is because pines suck up all the calcium. So I would just about bet that if you were to use green pine you would have an alkaline hugel and a more neutral one if you used rotting pine. I have thought the same thing because I have a lot of pine rotting on my property. Hope this helps and if I am wrong hopefully Paul will elaborate on the subject in future podcasts.

Welcome to permies & thanks Logan. There's a bit more info here on Paul's hugelkultur thread. It sounds like rotted pine logs are ok to use but not wood chips.