There's no getting round it it's just hard work. I have my van racked, fittings boxes, suitcase style same for screws. But I have a thing about running out of stuff, so I've got a long wheel base Toyota hiace. (most reliable can I have ever owned) five years old and no issues. And I have secondary stocks for fittings and screws and carry two of every type of strap on boss and waste tee,s for the condensate. I even carry two bags of sand and cement. Is there a name for my condition?