if you have very little time with the rotary I would say no when working on exotics.
I am having to agree with this post. Exotics------That means you likely cannot afford to repair it!!!!!!!!!!!!!!!!! If my Maserati, or AMG, or friends Bentley or Ferrari went in for a paint correction and we got a call saying sorry you need to see this, I burned the paint on the A pillar, or behind the mirror, Needlessly do I need to say I would be pissed off, NOT want to pay anything for what work that has been done, and then to take my business elsewhere, and spread the word that you damaged my car.
Then, honestly not sure how I would feel if my A pillar in my Aston Martin had to be re-painted?????????? Now I would feel like my car was not perfect any longer. Get the drift???????????
In the end it may not be worth it. However, you did say you have experience with the DA 2" air so the throw cannot be too much. (buy a compressor to power it, portable) Might be cheapest way
A small 2" or 1" pad on the Flex 8 might be ok if you ran it slower and really are careful. ( I do have experience with a rotary, but only use them on hard small corners and lower sections that need aggressive cutting, just is quicker and could do it with the 3401 if I wanted) In some of those areas I take a smaller backing plate, and a larger beveled pad with my 3401 and tilt it up on edge to get them. Seems to work nicely and since its forced rotation I can power through it. Most of those areas that are that tight, just need a good polish and not much cut to get the appearance right.
(Plus, a tip----- I have no problem telling a customer on his Ferrari that I was not comfortable with getting this specific area corrected. The gain is not worth the possibility of error, just a too tight of an area. I did it by hand, and they completely understand) (this also shows you are experienced and they will respect that a lot, where the last guy they used didn't say anything and either messed something up, or did a half a$$ job) I always go over the car initially with the customer to tell them what to expect when done. If there is something I won't get out, or cannot get out, I tell them up front and why that is so. Educate them and they will continue to drive business your way.
Just some thoughts to maybe help you. The PE-08 is the new possibly go to tool for rotary due to the compact size, and the capability of 1" - 5" and runs smoothly. I have one on order myself. By all means get one, but remember the results if a mistake is made. Could cost you your business if bad enough