Re: forward hatch?
My 1974 C22 has a forward hatch, so it must be an option and therefore an item you can buy. That said, check catalina direct
Catalina Direct: Forward Hatch C-22, C-250 MkII
but probably most hatches are the same and will work.
Warning: All comments by this poster are likey to be tongue in cheek and should be read as such unless noted otherwise.