I found a good product that repairs the infamous hinge crack quite well: Loctite Plastix Advanced Plastics Bonder, Item No. 01-82565 bonds all plastics, even polyethylene and polypropylene. Two-part application - activator and adhesive, no mixing required. For more information see: http://www.loctiteproducts.com/Loctite_Products/HouseholdAdhesive/PlasticAdhesives.cfm?plid=60
I used it several years ago on my 200LX and it has been fine since. And it doesn't look too bad, either.
Richard Smith
rsmith@ENOL.COM