Yes please for the Jamie Doughrty contact info. Thanks matty!
I just got a call back from Casey at The Beemer Shop. There is a fellow there that worked at Fox for 25 years. He says the only place is Thor's Evolution Suspension Products. It looks like they are in Virginia.
BTW, Lindemann Engineering website says
Hibernation
by LE | Jan 8, 2020 | Lindemann Engineering
Lindemann Engineering is fully in hibernation now. The car world pays a lot better and a full time job plus my own racing leaves no time for other work. LE is not closing but I’m not accepting any new work.