I am in the process of restoring a 1972 chesapeak, Just aboutfinished the transom replacement and need to replace all the stringers. The hull has a wood core much of the old fiberglass has detached from the core the stringers have been removed but there is no present fiberglass left as a pattern for them. My questions are can I just glass over the old glass using mat and poly resin, and how important is it to keep the new stringers identical to the original. Have alot of work done and much more ahead, appreciate any thoughts. t/y wav