Conversion from Manual to Electric start

I have a Snapper Rider 28" with a 11.5 hp Briggs (2006 model). I'm wanting to convert it to an electric start for my daughter. Dealer says flywheel no longer available. Can anyone tell me if there is a correct flywheel from another model that will work?

Engine specs:
Model: 217802 Type 0113E1

Mower is a Model 2811523 BV

You need more than just a flywhheel. You also need the charging system and wiring. It would be easier to find a good used engine that already has a starter. Then add wiring you need to make it work. This is not a small undertaking. Need a key switch and such.