I owned a Cirrus for ten years and still miss her. An overbuilt non balsa core
boat. I had pretty sever blistering and ground the blisters
of, filled on the voids and epoxied the hull
. vinyl headliner
was backed with foam which died. Removed the old and after vacuuming the remaining foam off the top used the old vinyl as a pattern and glued the replacement up. You should learn about Cirrus restoration
. A fine, safe confidence building boat suitable for off shore. Built for North Sea UK. There was a Super Cirrus with a slightly bigger rig. Some had inboards diesels. Compares favorably to the Flicka.