The broken plastic piece can also be repaired with fiberglass resin with
fiberglass cloth which is available at marine/boat supply stores and
stores such as Home Depot and similar stores.There are two types of
fiberglass resin,epoxy resin and polyester resin.Epoxy is the strongest
and polyester is not quite as strong as epoxy but is more flexible.I
have repaired quite a few things before with epoxy resin and useing
fiberglass cloth with the fiberglass resin and none of them has ever
broken yet.If you use (I prefer epoxy fiberglass resin) that method to
repair the broken plastic piece,scuff the plastic piece up first with
some coarse grade of sandpaper.Dont underestimate the many,many things
that can be repaired with fiberglass resin and useing fiberglass cloth
with the fiberglass resin for a permanent repair.
cuhulin