Torque wrenches

[Dave Billings <dbilling@spry.com>]

Hey all:

Looking to beef up my tool crib.  For a '66 Elan S2, what is the
necessary range for a torque wrench?  I think my real question is, can
one get away with only one, or is it a necessity to have the 5-45lbs.
*and* the 20-200lbs.?

And while we are at it, any recommendations for the best money/value
wrenches out there?  Snap-on probably isn't on my list, unfortunately.
I would also consider a quality used wrench if such a thing exists.

Thanks,

Dave
Seattle