I had a set of tires for my F103 on backorder for 5 years from Tamiya here in Norway. So they suck on parts, i order all my parts from Hong Kong, Japan or Asia. Besides, alot cheaper too! Just for reference, a set of upgrade steering for TT01 cost 80 USD + shipping (maybe 10 USD) here, get it from Rcmart for 29 USD incl shipping.
No wonder shops struggle!
Sorry for any typos....