Sounds like a good idea to me. However, you need to do it very neatly and use high quality parts and wire. You need to be adept at soldering and using heat shrink tubing. Do not use cheap insulated crimp connectors. If you need to use connectors, get uninsulated ones and use heat shrink tubing. You also want to be able to have the cluster unplug so that means finding a quality multi connection plug and socket. Could use 2 if necessary.
It will be a fair amount of work but you will have a reliable setup if you do it well. The factory floppy circuit board leaves a lot to be desired. Even when new the resistance to the bulbs is relatively high. When they get old, it really gets bad.
My solution was to go with the Dakota VHX setup. Best $800 I've put in the car. If you can justify the cost. I say do that.