Same things happened to me...
I contacted him last year (about July) asking him about a vader suit, cape & robe, and he told me he could do it for me, but it would take a little... I told him, no problem on wait... I told him I let let him know when I gather all the money to start it...
When I got the money (arround 1 or 2 months later) I tried to contact him to ask him to start with the suita and cae/robe... but after lots of emails with no answers, I simply decided to quit...
I know he is a very very very very busy man, but I think he could even answer 1 time the email and say at least he wont do it... This way we could know if we must find other sources or what...
I´m not trying to say nothing bad about Paul, He is for sure a great guy and very busy, but at least an asnwer (is the only thing I asked)...
Finally, I jumped into the TMP suit (in development at this moment), and judging by the pictures, I think is way better than the RO... And I managed to get a set of the RO´s cape and robe by other source
So, I have everything...
P.S. GH, I will send you pictures of my new suit as soon as I recieved it... ok ?? (I think you will simply go for the TMP as well).