Re: 420 hurricane
Your best bet is going to be to get a good quality inflatable boat cleaner such as mary kate or poly marine brand. A light(white) sctoch brite pad will not be to abrasive and will go aloig way to helping to clean the boat. For the fiberglass hull you'll probably want a heavier duty cleaner designed for fiberglass. Unless the boat is really worn you probably won't need to regelcoat whic hsi a challenge in itself. The good news is most parts are probably still available for that boat.
A lot of the Zodiac ribs were all built at the hurricane factory in Canada until the early to mid 90's. I think your boat is probabyl a Pro or yachtline 420 built by hurricane. It may be listed on the capacity tag along with a typr'serie number and the serial number. these numbers are important if you ever need parts or new tubes. Defender stocks a lot of the Zodiac parts and haas great pricing. their webiste is
www.defender.com.
Good luck with the new boat !
-C