I was able to find some information on the display used in Vector that may be helpful.

It is from the manufacturer Santek (San Technology, Inc., San Diego, California), the model number is ST0103A2W-WSNLW-F. You can find the information on Santek's website.

The resolution of the IPS-display is 184 x 96 Pixels, module size is 28.34 x 20.29 x 2.12 mm, active area is 23.18 x 12.10 mm.

I have no idea if they sell it to end users in the USA or if they are B2B only. There seems to be a german subsidiary: Santek Europe GmbH, Mergenthalerallee 77, 65760 Eschborn, Deutschland

Comment by Rob Simpson on Facebook (thanks for that): We know the display was a custom unit, with a shorter ribbon cable made by this company: https://www.trulyamerica.com/products/suggest-module-custom-request/

Update: Here seems to be another variant with shorter cable that looks more correct than the first one above, this is by Santek Japan.