Great find...love the black and red combo...yes, I'm partial to 68 GTX's also...below is mine as found after 24 years in an open pasture:

and here it is after a year of work:


Good luck with yours...

1968 Plymouth GTX
1974 Dodge P/U Long Bed Stepside 318
2019 Ram 2500 6.4, auto, 4WD