Friends, I have a very nice lost worlds car coat that has seen some action and needs a little TLC. The thread is coming undone in all the buttonholes. I was thinking in using a gimp and heavy thread to address the damage, but I have some question before I do something I might regret. Since I have not done this repair, I have been researching online for how to videos, but none show a heavy-duty sewing method for heavy horsehide. I am about to purchase some gimp and some tread. Any recommendations? I welcome any input! G.