Hello All, I am looking for an owners manual or copy of such for an Irwin 10/4 1975, does anyone have a copy posted on the web? I just bought the old girl and she is in need of a lot of TLC. As usual, or so it seems, her center board is gone. The rest is just cosmetic and elbow grease. I would like to hear from other 10/4 owners for a variety of things, for instance, does anyone have a picture of the base of the mast without the mast mounted. I will be removing the mast in a few weeks but need to see the base to know what to expect and how to lower it. We do not have crane type services where I sail and I may need to rig a way to step and lower. Any help or insight would be greatly appricated. Thanks