I know these are expensive, but in contrast to dowelling the ash is tough, flexible and with enough varnish/paint, long-lasting. You don't want to see the splinters from a ramin boathook breaking at the critical moment - very long and very sharp.
For our international customers, transporting these is likely to be expensive, so please check first, or see what you can get locally.
If nothing seems to be going in the basket, see here