White Industry hubs are fantastic and should last a very long time. I'd agree with others that lacing up some new rims/spokes to those WI hubs would be the way I'd go. Spend the money on spokes and rims, reuse your current hubs, and have a top-shelf wheelset that will be light and durable.
The only downside is finding a wheel builder in your area, or sending your hubs to some online shop and waiting while they get built. I have to think Belgium is overflowing with options, but maybe I spend too much time watching UCI Cyclocross.