I see where "Chuck" <chuck@nospam.ca> contributed:

Any Briggs & Stratton bigger than 2 hp will haul it fine - everything
depends on gearing.  What you should be looking for is not engine size
but whether the tow rating adequately exceeds the GVWR of the trailer
- which appears on the ID label. (Gross Vehicle Wt Rating)

Will Sill
The Curmudgeon of Sill Hill

If all you want to do is move it a few miles and park it, a
1/2 ton pickup with a weight distributing hitch would be
fine. A 3/4 or 1 ton pickup would be better of course as it
may be able to move it with just the platform hitch and no
weight distributing bars.

Any engine, all the way down to the six cylinder models of
1/2 ton pickups, would be enough to pull it for just a few
miles but don't expect them to pull it up long, steep grades.
HD in NY

With no stuff and no fluids in it, and for a short haul, I would say
any 1/2 ton pick up made by Ford, Chevy or Dodge...

I would not advise taking it on a freeway....

Hunter
--

http://members.aol.com/hhamp5246/roadtrip2005.htm

Life's journey is not to arrive at the grave safely in a well-preserved body,
but rather to skid in sideways, totally worn out, shouting "...holy sh.t...what a ride!"

Reading your post a little more carefully <g>, I'll offer
this advice. You can safely tow this trailer with most any
1/2 ton pickup. Among the older trucks small engines, the GM
4.3L V6 engines are probably the most able. A weight
distributing hitch is a must and a single friction sway
control will be an added safety factor. You can use a model
without a tow package as well as you add the equivalent
accessories. You need a platform hitch along with a service
plug with a brake controller. An absolute must is an after
market transmission cooler.

Make sure the electric trailer brakes are in good condition
and make sure the wiring harness to them is is also.
Regardless of what truck you pick, you need those brakes to
stop safely.

To those not in agreement with me, I'll offer the *fact* I
towed a trailer 8' longer and 2,000 lbs heavier with a '96
Sierra club coupe with the 4.3L engine. We made the trip
west from the Raleigh area to I-81 via I-40. The long grade
in the mountains was done with ease.
HD in NY

Along with the suggestions others have gave, I recommend reading this
article published by "Pop Up Times".  It references is for Pop-Up trailers
but the 'rule of thumb' it suggests can (and should IMO) be used by most
towing scenarios.

http://www.popuptimes.com/archives/ruleofthumb.asp

It also gives good definitions of weights, towing limits, etc. for
beginners.