I have the proper physics for it (would need a bit of updating to my current standards but most of it is there)...just don't have a proper model for it. What @Giovaneveterano posted looks like the PCARS model.
Yeah I'd trust your physics over mine any day
It wasn't really for public consumption, just for when we were running it in a league.
And yes, the model needs a ton of work anyway, I'd personally just start again.