Although I've never been, I see Vastern Timber have some European Cedar of Lebanon sawn timber. The First Joinery Quality although not cheap should be great for carving.
Vastern Timber Company Ltd
Wiltshire SN4 7PD
T 01793 853281
I looked at some of your posts, very impressive. Have you contacted the chaps at Vectric to show them what you're doing? They are only a 2 hours away from you, I would be surprised if they didn't want to work with you to put together a post processor.
Sincerely and good luck