Making molds of a part or 2

I decided to go ahead and start on some molds for the parts I need to finish up the dart and have a tracing coming from a User on here that was kind enough to trace his kick panels for me and mail it to me. Soooo while I was waiting I decided to get the harder parts I want made out of the way. here's a start on the rear convertible top plastic pieces that got on the rear side panels that hide the lift cylinder. (now I know why they want so much money to make these darn things) I"m nearly done with the drivers side, and I have to glue up the passengers side just to get 95 percent of the passengers side and fudge the rest to match the drivers side
here's some pic's (hope the wife does not see this since it was on her trunk lid that I did all this)

what really supprised me was it's not held on by the bottom trim. the only thing that holds it on is the top boot snaps that are screwed in around the top,, weird.


here it is using the almost whole piece as a master, I forgot to wax the heck out of it so things wouldnt stick and it to most of the day yesterday to get the mold out without breaking the piece worse that it already was.
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got it out and started fixing the gouge marks I put in it from trying to get it out.
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used foam insulation to bulk out the bondo mold and it seems to work just fine.

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here's different views

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got it sanded to 180 so far and still need more I'll ramp it up to 400 before I'm done just so It (the plastic) comes off the mold easier. then 5 or more coats of wax to use as release agent for the plastic.