Welcome , MS , and what a beautiful truck! Sounds like you’re settled down there in Katy.
I’m an old Texan myself, though long ago.
That deluxe model, with hydramatic, is to me , worth keeping original. What a pleasure to drive .
This must have been the very last GMC new design bodies! I feel the one piece windshield in the old body style in the 54 55
trucks was already a customized look. A rare and original, keep it, enjoy it!