American sold (i assume Asian manufacture)
http://www.aixiz.com/store/index.php (recommended by a couple of peeps here on the TSB)
talk to chuck. he'll get you what you need. i don't know what his PhD is in, but he's got one. so he must be smart at something.
$125 shipped for 4 lasers, line caps (throws a short line), mounts, plug-in power adapter.
$20 in turnbuckles, eye hooks, hanging wire, 20awg power wire, electrical connectors.
$12 extension cord.
Couple of hours of cutting and screwing and connecting wires. Plug it in and go.
Only smart thing I added was mounting it roughly directly above the load platen - that way, when the press lifts, the lines stay relatively in the same spot.