I know a framer who has an AMP-Mitre Mite model VN-4, 80 mm, 3-position, computerized/automatic underpinner. The serial number indicates 1997 manufacture, but it has been collecting dust for several years. There are a couple of pneumatic parts laying loose on the machine, and some loose air lines dangling from the underside. I'm inquiring to Fletcher-AMP's Chicago service location about sending this machine back to be refurbished, and wouldn't be surprised if the cost is $2,000 or more plus shipping both ways. I'm told that if the automatic features are removed and the machine is used only manually, the cost would be less, but either way, I'm wondering whether this machine is worth it. There are several used underpinners on the market, in apparent good condition, which would serve the purposes of this frame shop, and most of them probably would cost less than refurbishing this one. Any suggestions?