Looking for some suggestions LED sequencer and gong

I would like a curcuit board designed to sequence 10 to 12 LEDs when a touch switch is activated. When the last LED is lit i would like the design to ring an electronic bell 1 time. The bell sound I am looking for should be a gong like that in a boxing ring. The unit needs to be battery operated. Battery size doesn't matter. Unit also needs to have a manual on/off switch when not in use.

Thanks in advance

I would like to hire someone qualified to do this design work.
sachs@tampabay.rr.com

I think you could use a 4017 decade counter and the last LED makind a paralel conection to a relay for switching the bell, the on/ff switch would be think so in the pin clock of the 4017

Hi mettula
The 4017 sound ok, but I still need a touch switch, A switch activated by touch. Will also need not a mechanical bell, but an electronic bell built into circuit. 1 loud gong at end of sequence. Thanks in advance.