I got confused at the beggining also when i got interested in building a BR laser.
But at that time there wasnt as much Phr-803t sleds for sale and if there were, they were $27bucks. Now you can just goto the BS&T section of the forum and pick one up for $15-$18 delivered.
SF-HD67 sled is a SF-HD67 sled. A Phr-803t sled is a Phr-803t sled with the BR diodes.
Tommy