Hi Doug – the short answer is no – but……………….you must have a large waterproof shelter. When I say large, you’ll need as a minimum of three feet clear round all sides and ends of the boat plus a good clearance overhead as well as beneath the boat. Then you’ll need room for tools and “stuff”. Having a tarpaulin structure will be fine, but security issues will have to be considered. The other major consideration is power – yes, you can achieve all repairs etc using battery powered tools, but there’s nothing to beat having mains power available for lighting and, in the depths of winter, a bit of heat. But access to a secure barn like structure will bring peace of mind. I’ve rented a ‘barn’ for A1’s restoration at a cost of £100 (including power) per month – worth every penny!
Good luck! Mike