Using old one as a pattern
I made a dodger a few years ago and used the old one as a pattern. Ripping seams is easy when the thread is all rotted, you can just pull on the seam and it rips apart. I had no problem whatsoever with the fit after I finished it and it looks as good as the original. One advantage of your own equipment and materials is that you can change it or fix it easily. For example....during an absence I left my boom topping lift too low and the sail cover was rubbing on the top of the dodger where there is a frame. Wore a hole through the fabric. Solution, I sewed in a leather chafe cover on that area and elevated the boom a little. Came out great and looks like it was part of the original design.
Good luck and sounds like a lot of experienced sewers on this site for advice.
I made a dodger a few years ago and used the old one as a pattern. Ripping seams is easy when the thread is all rotted, you can just pull on the seam and it rips apart. I had no problem whatsoever with the fit after I finished it and it looks as good as the original. One advantage of your own equipment and materials is that you can change it or fix it easily. For example....during an absence I left my boom topping lift too low and the sail cover was rubbing on the top of the dodger where there is a frame. Wore a hole through the fabric. Solution, I sewed in a leather chafe cover on that area and elevated the boom a little. Came out great and looks like it was part of the original design.
Good luck and sounds like a lot of experienced sewers on this site for advice.