RE: pull start engine, starterbox & no pull start
go with the starter box listed above, and you can get one used with battery for around $50 - $70
and the battery is like a car battery, but smaller and its somthimes called a gel cell.
[link=http://www.amainhobbies.com/product_info.php/products_id/5767]Heres the battery[/link]
[link=http://www.amainhobbies.com/product_info.php/products_id/5768]Heres the battery charger.[/link]