what to do (CFI)

Question for you experts out there...

I am a fixed wing pilot with 1000+ TT, MEI, CFII, CFI

I have a couple of hours helicopter time. I would like to eventually
get my rotorcraft CFI rating. I understand this would require getting
my rotorcraft add on.

1) What is the best way of getting from where I am now to a rotor CFI ?
(by best I mean cheapest)

2) Do I go direct to Commercial rotorcraft or do I have to get Private
rotorcraft ?

3) Do I do a ride for the rotorcraft CFI ?

4) Is there a good school where I can get all of these ratings quickly
and efficiently in an intensive training program ? I don't want to do a
couple of hours a month.

5) Any guesses as to costs ? $$$ ?

6) Does anybody anywhere rent a helicopter anymore, or is it just dual
instruction ?

7) Does it make more economic sense for me to buy a used Hughes 269 and
train in it, then sell it when I am done training ?

I am not doing this as a career, just because I love helicopters.

thanks in advance for the help !