is anyone able to help me determine the value of this car? here's some of the details:

1984 Grand Marquis LS
Full leather light-tan int; dark-tan ext
V8 EFI automatic; Tilt wheel; power seats/everything
1owner 18,000k mi.; well-kept in a garage since purchase—has never seen a winter
all maintenance done, w/documentation filed
unfortunately the headliner is coming down

plus some other complimentary items to go along w/it, like the old fluid used for the AC; DIY service manuals; various filters; etc.

i haven't been able to find **** about the value or any past listings in my internet searching. finally, i came across this forum - hopefully someone here can help anymore questions, please let me know! i'll keep in touch