I need to replace the tuning machines on my Tyrolean and am looking for a quality set that are not too heavy. I have heard great things about the Irving Sloane machines but have heard that they are very heavy ( and very pricey). There are many options and I am familiar with Lemur, Upton, etc. but would like to get some recommendations for a high quality set that is on the light side weight wise. Would like to find something for less than $200 but I might be flexible for the right machines! Any suggestions??