If you're still looking for the SA-1 laser replacement, there is a couple available on eBay NOW which works on my SA-1 (I bought to keep it as a spare part). Make sure you get the one from England with HPD28... on the label. Don't get the laser from other two store as it won't work (I tried).
Note: I'm not affiliate with the party that have the part on sale - only try to help an A'gon member.
Note: I'm not affiliate with the party that have the part on sale - only try to help an A'gon member.