Hi Clint,
I don't believe you could have to many ST 46's or 60's. I don't have many tigre's but I have my share of merco 49's and 61's. All mine are rebuild and ready for action, I'm just to slow to get something for each engine, (I've run out of room in the garage and my spouse doesn't think planes take the place of pictures in the home. I've showed her pictures of Windy's planes hanging in the place of pictures, (maybe if mine looked that great she would let me hang some in the home). We have plans to build a place in the back yard but if we did that she probably would want my son and I to move into the back yard, Ha Ha. Great looking engines but that looks like just a start, show them to your wife, be sure to let her know how much they cost, I'm sure she'll tell you to buy more!!! Have a great day, Gary
(Hey!!! Looks for more engines to show up on e-bay!!!)