Any recomendations on the type of hardware for mounting the tub? Ebay has vendors selling the "correct mounting hardware" for about $40.00, with the correct locking nuts, they look like their zinc coated. Or would I be better served to just go to the hardware store pick out what I need, and maybe go with stainless and copius amounts of anti seize. Would carriage bolts be better in the tub? I appreciate your time and opinions, Thanks.