I have some Bachmann HO scale model engines that I found in the attic from about 20 years ago or more.  I need to know if they are worth any notable monies before I give them to the grandkids to play with.

I have a Santa Fe Lighted engine with a red nose.
A Union Pacific  engine #866.
An HO Overland 4-8-4 & Tender w/smoke, Union Pacific.
An AT&SF Lighted smoke engine with coal tenderer.
A Union Pacific EMD GP35 Diesel engine #763

Are they valuable in any way?