"Material that comparable to what you wish to have made would be best. Whether it's wood or metal for benches or pillows for cushions. If there is no protest, you may seek donations for a temporary transformation. I am more than capable of returning them to their original shape after your ceremony."

Extra, permanent benches for thirty people would probably be difficult to store anyway.

"As to the payment, it may be in the form of materials. But pray tell me, what do your skills as a mechanic cover?"