I'm about 25 years ahead of you on this path. My background was 800 hours civilian fixed wing when I went to Mother Rucker for RWQC in 1981. Now I'm an early retired NWA Captain, who never had to call myself a a delta captain. (Lower case for a reason).
My email is my screen name at aol.com, drop me a note and I'll let you know what I did to get to Northwest at age 28.