You should see if he will just tell you the plans online and save the shipping. I think shipping is the biggest scam around for most ebay products.
I was reading some of his feedback and found
"I don't know why charge me $4 shipping for a paper "NO
Tools only Solution....." ""
Reply by goingg0inggone: $4 Covers Ink Cartridges,Paper,Stamps,Trips to the Post Office and ebay fees,etc
Another good one:
"Good idea, I've seen it many places before. Very fast shipping,s&h way too high
Reply by goingg0inggone: Seen it before my butt..My Idea.. CAN"T afford $4.00 Handling then don't get it!"
By far my favorite feedback:
GOOD E BAYER, THE ITEM I BOUGHT WAS STUPID THAT WAS MY FAULT, LIVE AND LEARN
Reply by goingg0inggone: I felt the same when I bought it before putting it back up for auction.