Hi there! I have a 1987 YJ with full doors from a CJ. My top is worn out and it's time to start thinking about a new one. There's one on ebay made by rugged ridge for $329, but it says it fits YJs from 1988 on. How different is the 88 model from the 87 model? Can I get away with this top, or do I need to spend more? I'm on a tight budget.