That's just over 1/2 of a "boat dollar".
I don't know what other source you could find, unless you want to make it a do-it-yourself project.
The plastic is "Starboard"
Lift-off hinges can be purchased from
http://www.southco.comPlus SST hinges, Plus center Latch, Plus Blocks to act as door jam.
But when your all done, you will have a homemade door instead of a FW door, which could hurt resale value if it doesn't look as good.
_________________

"Knot Easy" 2000 Horizon 240 Volvo 5.7GS /SX
tow: 2017 Honda PILOT EXL-AWD
prev. boats:
'87 Chaparral 198CXL 4.3 OMC Cobra
'69 Jetstar 16ft Ski Boat, 115hp Yamaha
'68 Aluminum Jon Boat, 3hp Sears
'64 Water Wings