Late this past summer I contacted Select Plastics. The turn around was said to be 6 weeks. The cost, well, my new lens came from CD a week later.
I have to say the hatches those guys repaired for acquaintances look to be done well. It appears they know their stuff. They charge accordingly. If you compare their cost, w/shipping, to a marine yard locally pulling the hatch, redoing the lens and resealing it all, they are likely cheaper.
On my Pearson 27-2 I hit a Defender sale and the new hatch with shipping was less than the quote from Select Plastics in 2016. Installed w/Rod's Butyl Tape, easy job.
Now, if I could only figure out how to remove the top of the forward hatch to bring it home so I can actually replace the lens, I'd be in business. &*^%!
Good luck.