IMHO you can't beat an original set unless you are willing to spend $75 each for replacements. Those old gauges will work forever provided you have good grounds (with the exception of the oil gauge because it works off pressure). Replacement clusters will run $500, sometimes you will find seller refurbished one eBay for half of that. It isn't a lot of work to bring your cluster back. If your speedo is working that is a half of what normally goes bad on them (new speedo is about $150). The next common failure would be the fuel and temp guages- all about the grounds.