4 in. x 12 in. Thick Floating Stair Treads

Nice piece!! Well made

the piece itself is gorgeous, but the time it took to order was much longer than expected. when placing the order i was told 3-4 weeks which i could accept, but the peace ended up taking a little over 9 weeks to arrive which pushed up against our deadline. the client is concerned and is considering going to a different vendor that has a similar product with a much shorter lead time. is there any way to assure that if we order 13 more of these that we could expect a 3-4 week lead time or would it also be 9 Weeks +?