Is there any milage in some kind of coordinated buyers club, combined with an insurance scheme?. A spare pump for example or 24ft. pole is a big chunk of money tied up,just in case, but £10 or £20 per month for an over-night replacement service sounds good to me.
You might ask who would want to coordinated such a thing, but if it meant that I could negotiate much better deals for my benifit, then I would.