Putting an nv4500 in my 1990 suburban soon and dont have a factory tachometer. I would like to add a tachometer. Wondering if anyone has any recs for one would like to replace my large fuel gauge on the right with a large tac and small fuel gauge at the bottom like some factory ive seen. Anyone seen any gokd aftermarket options for this ? How hard is it to swap? If i cant come up with something factory looking i will throw one on the dash but i would rather the factory look /style. Thanks for any info mike