Convert manual light gas water heater to Dsi (spark ignition)?

Hello, our water heater doesn't work anymore, it might be the thermocouple, it just will not light (pilot light won't light either), (yes all the other gas appliances work perfectly); anyhow, I want to know if I can install a new water heater (gas) with a DSI (direct spark ignition) with a switch inside the trailer. I love how easy it is to turn the furnace on with the push of a switch, and hate how hard it is to light the water heater with a match. Any ideas? I know it will require some wiring, and was wondering if the wiring inside the storage trunk for the light bulb in the trunk would work to hook into or if it's not the correct volts... I know next to nothing about electricity but I have friends who do! Hoping this is possible, please comment if you have experience with this type of project. Trailer is a Coleman Bayside, water heater is a Suburban sw6p.

 

That's a good point, but our's has always been a real pain to light.