FNG here
New guy here!  I hope soon to be able to call myself a "Road Runner" owner, but right now I'm a want-to-be.  I have a '61 Vette with Mechanical Fuel Injection, but now I am looking for a muscle car.  I think a 1970 Road Runner would suit me perfectly. Before I pull the trigger (I'm close!), I wanted to run a few questions by the experts here.  Since my questions range various categories, I thought I could list them here and if it was an issue, I could take down that part of the post.  
I found a great '70 with a 440 auto.  Two things the car is missing that I really want...pistol grip shifter and the air grabber (who doesn't want those options?!).  I have seen that the air grabber can come in a kit but will set me back about $3k.  Sound about right?  
As far as converting to a manual, can I get the stock shifter look with a bench seat still?  I found kits from searching the forum for about $4k, but I wasn't sure if I needed to convert to bucket seats as well.
Lastly, I know fraud can be a problem with these cars.  What can I do to protect myself unknowingly buying a clone?  
Thank you for your help in advance and I look forward to meeting you all virtually over time!