the only widebody kits being in production for the 7th gen celica or the apr gt300 wideobyd kit and the ground designs 2000 black widow II kit.
black widow II kits run for about $1,800 and apr gt300 kits run for about $2,800 and both kits are worth their $$.
you can also go wideobody by purchasing Fender
flares instead of a whole different kit. the brs Fender
flares are no longer being produced but there are people still selling them online used and sometimes new (usually for around $400) also, you can purchase the black widow II Fender
flares separately fromt he kit. (nopi.com for about $300)