Muddy Boat
Member
Although smaller than you suggest, we have had both an Adventurer (10ft) dinghy and currently a Blue Peter (8ft). We have used them as a tender and have also taught the kids to sail in them in Chichester Harbour. Both are fibreglass, light (important if you are trailering) and relatively stable (you have to try very hard to capsize them). The Adventurer has a jib, the blue peter just a main and they are both sit in. Because they are older and not class dinghys they also tend to be cheaper to buy.