yes have contemplated getting out me old neoprene suit out of the attic, but it's (OK have a laugh on me but..) rear entry, meaning the water-proof zip runs across the back of your shoulders making it bloody hard to get it done up!
I have a newer one but it's the same suit with a few extras - I was killing suits about 1 every 2 years and at £1000 it got expensive! don't think they'll survive too long on the bike!
am thinking about a surface/breathable drysuit for boating, jetskis ect, - front entry, seals on neck, wrists and ankles, and you can wear the bike boots! or just get a £20 1 piece jobby from Lidl or the like!
look like a tit but if it keeps you dry!