I make PC-TEA developer.

I bought Phenidone from Artcraft, and there were no problems with shipping. I got enough to last a long, long time!

For the TEA (triethanolamine), I sourced that locally from Merck - it was on special, but still somewhat more expensive than US list prices. I'm sure I could have got a less pure version cheaper, but this wasn't too bad. I did have to fill in some declaration as to its use, but that was just a formallity.

The Vitamin C powder came from the health food shop.

I've also got all the chemicals I need to mix home-brew Rodinal - these were easy to source.

Let us know which local suppliers you end up using.