Need help with a Gateway Colorbook from 1995, missing HDD caddy

[sudaox]

Hello, I have a Gateway Colorbook 2 using a 486 and I need help finding a part for it. The laptop is dated 1995 and is missing the HDD caddy which is needed because of it having an adapter to convert a 2.5" IDE drive to a proprietary interface. If anyone knows any info about this or knows, where I could find one or if it is possible to make my own convertor for this drive. I do not know the pinout
Attached are some pictures of the laptop including the proprietary interface