I live in Jeri and it is super windy; not sure how great that is for kiting.
Wind mustn't be too bad if Susi Mai, Julie Simsar, Ruben Lenten & Marc Doyle are all currently kiting in Prea.
Not sure how much it would cost to transfer you to and from Prea/Jeri. But I'm sure if you hire kit or do a course with one of the kite clubs then the tranfser is free.
Transfer from Jeri to Prea is about R$ 35 to R$ 40 each way for up to 5 people (in a buggy). You can bargain a return trip for R$ 60 to R$ 70 depending on how long you stay.
If you take kite classes or rent a kite in Prea, the transfer from Jeri is free, or included.