Considering Ralf Aust and buying razors w/ wood scales etiquette
You can always contact Don at SRD and talk to him. He can order what you want form Aust or you can order directly through Aust. Ordering through SRD is easier though if you are in the states.
Also agree with The poster that said TSS has some nice wood scaled NTS razors which are nice
Wood scales on production razors are generally thicker than their plastic and horn counterparts. To get the thinness you desire you may have to do some work or have it done for you. Also you are limited in the type of wood that can use that is strong and flexible enough to go thin.