Getting a Stampede - FML parts?

[Thomas P]

Ive been reading a little about this car, and FML...

my plan is to get the Extended chassi (the 150$ version)
Steel idler gear
Steel diff (but i did see it was out of stock ,ny ideas when it will be availble again?

WIth the extra wide arms,will it be needing the extended CVDs ? (i think yes)

How about some tranny parts from the BL-Stampede? will that take 2-3s lipo and a 4.5t Orion for an example?

Aand finaly, do i realy need to buy a rtr stampede for this?

a list for me,as i am new for this brand and kind of cars(only racing 1/10th buggy normaly)

what parts il be needing if il get loose parts for this one, and where to buyém..

/Thomas