Side Pipes?
Heck Yeah! I used to have a set of 72" lakers on the '68 LWB. It looks real good IMHO!
Give the truck a slight rake , be careful not to drop it too much and warn your girlfriend if she's wearing shorts or a skirt.
Don't want her to get a waffle-patterned burn scar on her nice pretty legs now, plus you would probably want to keep her around for a bit. I speak from experience.
BTW, when I say "lakers", what I mean to say is that they look like the pipes already pictured above, but with a secondary pipe inside the larger one. Think of it as an exhaust system with a single pipe for every two exhaust ports and you have the right idea.
One of the better looking exhaust setups on the right truck, I think. Put a soft vinyl tonneau cover on it, Baby Moon centercaps/ Chrome or body color steel wheels, and wide tires with raised white lettering, and and a solid color paintjob, preferably red ochre or yellow. But that's my opinion.