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The OP brought it up right in the first post.
Don't knock it 'til you try it, but I have read good things about the HF digital torque adapter. Most guys keep it in the tool box just to keep their torque wrench honest.http://www.harborfreight.com/digital-torue-adapter-68283.html
I have a Snap-On 1/2" from a garage sale and a HF 3/8" The Snap-On truck checked both a couple years back and they both passed. If the storage boxes didn't have the names molded into them you couldn't tell which was HF and which was Snap-On.
I RARELY have found enough room to use one of the beam type torque wrenches.