Boot seal lip area

[fe350chev]

Hi. I need to fabricate the boot lip as it looks like some farmer used the car as a Ute and abused the lip. Is the first bend in the lip from the rear body supposed to be at a right angle  ??? Mine is no good on both cars. I'm wondering if I should modify it while I'm at it and put a boot release mechanism into the interior side and also make up a number plate filler concealer or get ideas. Are the original seals complete crapola or are they ok. It would be a lot of work to replace the lip right around so any links would be good, even a pic from centre rear so I can refer to it.