Yikes!!!
That’s not something that should be happening at that amount of backspace with. 17” rim. Do you have any more pictures? Is there a steering stop somewhere?
What brakes do you have on the car? There are a few options, and they can affect the track width which can change the backspacing needed.
The factory torsion bar set ups generally into issues with 17” rims and the outer tie rod end at around 5.7” of backspace, so, more than what the OP has. Which is weird anyway, considering that it’s got a rack and pinion with that RMS suspension.
Honestly I haven’t heard of this issue with the RMS suspensions, it seems weird that it would be more limiting than the factory steering even with a 17” wheel. Although I know most of the RMS cars with wide front tires are running 18’s. It seems strange though that RMS says it should work, Bill’s pretty well versed in what fits and won’t at this point.