Off Delay Timers in Series

A customer of mine wants to start a sequence utilizing two timers in series once the "Wireless Controller" contact is closed. I did the logic in PLC but then the customer changed his mind when he found out how much it was going to cost for a PLC brick. So he asked if I can do a hardwire system. The sequence of operations is as follows: wireless controller contact is closed which then starts the off-delay timer #1 to energize a ball valve for 30 seconds. Once the 30 seconds is over, off-delay timer #2 needs to then start its timer for 5 seconds to energize the flush valve. I am stuck on how to make this happen with the hardwire system that's being requested. Any advice is appreciated.