The #6 Donohue-Penske '71 Javelin is the iconic version of that model. The Roy Woods Racing Javelins (#1 - Follmer, #2 - Woods, and the # 63 - Collins) are the next best representatives.
With regards to earlier versions of the Javelin, the #3 - Revson, #4 - Follmer are the top performers by far, though the best finishes were six 2nd places and two 3rd places in 1968. When those drivers switched to Ford Mustangs in 1969 Javelins had no top 3 finishes.
If Pioneer makes a sidewinder Javelin with any of these liveries it would make for good comparisons with the Scalextric releases. And if sidewinders turned out to better fits with their peers Pioneer could do just fine despite getting to the party a bit late.
PS: Although I love the 'Pony Wars' side of this Trans Am era as much as anyone, when you break it down the results actually depended on two simple things - 1) which manufacturer had Penske building their cars, and 2) which manufacturer hired the top drivers (Donohue, Follmer, Revson, Gurney, etc.).