My personal preference is never to re-use old nuts and bolts unless they are some special entity. I'd replace them with new ones of the type shown in the ISPL.
On the conduit front, xmod had some a while back, but I've no idea if they still have any. I'm trying to find a source of the fittings they connect to for my Abbot, such as the T-pieces on the headlamps.
Andy