Hi Rick, nice to hear from you. You're right. I just did some quick math. I would have to spend at least $100 for the cone shaped rubber pieces and the special washers plus $6.00apiece for any J nuts that I would need. Then I would have to find and make the square rubber pieces. Not worth it just because I have the bolts already. I don't know what the Australian dollar is doing relative to the US dollar but ours is falling fast. About 90 cents today.
Thanks for bringing me to my senses.