Have you actually checked the repairs section when you are at the starport ? Wear 'n tear isn't fixed from the starport services homescreen - you have to go looking for it !
I suspect it's at 100% by nowI'm getting ~4k CR bills when I check for my mostly kitted out Adder - normally around the 60% wear mark - which doesn't seem too unreasonable.
Occasionally I click over there by accident, a handful of times. Every time in memory, the only thing listed as needing repair is the paint job for ten credits. o.o; Next time I'm on, I'll check my Type 6, see if it has any gremlins building up in the engine room.