If it wasn't a non-UK truck I'd say claim on their insurance to save your premiums going up and loosing your NCB (unless it is protected you will loose you NCB even if it isn't your fault) - as it is you may have to claim on yours and get your excess back when the claim is recovered :/

Will take 6 months or more to sort out....

Is a good thing you both came out unscathed though...