Well that has to be the first time I have heard Ebony described as run of the mill.
It's hard enough to find, and very sought after actually, and not many manufacturers use it (for cost reasons) except in their most expensive instruments.
A replacement coco bolo fingerboard would run
650$ a Pau Ferro 450$; that is assuming that the old fretboard comes off with no problems (meaning that the instrument does not get any scratches in the removal process and does not require us to have to re-spray it; we try very hard to make sure that it does not happen, but you can never tell). The OM symbol would cost
600$ (without a back LED).
Timewise, it would depend on how smoothly the fretboard removal goes. It could take just a few days to put in a new fretboard, but the inlay would prolong things by a few weeks. It depends on how much work we have going on whenever you decided to send in your bass. Keep in mind that there's always a line for repairs, so any instrument that comes in will have to wait a bit for its turn before anyone can start to do any work on it.
Valentino