quick static drop question

[Mike J]

Hey guys, I'm new here...well, I've been lurking and reading for a few months now...but here's my 1st post and 1st question:

-How much drop would it take to be at least be tucking tire front & back on a '68 longbed coil spring truck?
-Would 3" springs and 2.5" spindles be enough in the front? can't really go any lower in the front statically right? -and how about the rear? 5" coils and 2" blocks, would that work? I'm trying to be as low as possible all the time without air ride...

Thanks guys, appreciate any help and insight...and I don't have a c-10 yet, but I'm looking everywhere around here for a decent one and just trying to get my plan worked out...

btw, will this all still work with factory steel wheels? that's the look I'm going for... thanks again