I can get them at a silly low price but I will be hit by minimum order charges. You can see if they will supply locally at:
https://export.farnell.com/welcome-greece then put 'mmic' in the search box.
I do have some older devices here which you are welcome to a few of, they are Avantek MSA0135 MMICs, DC to 1.2GHz with 19dB gain. They are in 'micro-X' packages, four wired ceramic dots, two are ground, one is an input and one is the output and supply. They are lower gain but are cascadable and unconditionally stable with no inductors. I can send you some if you like. Be careful, they are tiny and fragile!
Brian.