Any sign shop that does truck and auto lettering and such should be able to reproduce your Sunline emblem(s) for you.
In the old days, they'd just get out the paint and brushes and paint a new one, either on the vehicle itself, or on sheet vinyl. Some still do that.
But others have the new large scale inkjet printers and should be able to take a picture of an existing emblem, digitize it, repair as necessary if the original wasn't perfect, and then print it on the vinyl in exactly the size needed.
Once it is digitized, in theory, it could be reproduced over and over again as needed.
'12 F250 4x4 Super Duty PowerStroke 6.7 diesel
2011 to present: '11 Cougar 326MKS
1999 to 2011: '99 Sunline T-2453
Amateur Radio kd2iat monitoring 146.52