Visa medical tests needed in Poland as a requisite for a job in another country

Ok, so I have been offered a job in another country, and as part of the process I have to obtain a medical certificate.

The form is a standard medical form that, largely requires self cert, however apart from the usual items that doctors check is HIV blood test, X-Ray, and ECG.

I have asked around if this is possible, via hospital etc and the usual reply is cannot be done. (I live in a smallish city and am willing to pay)

What are my options?

Surely, with translator in tow, I can go to the hospital or an obliging doctor.
It's either that or I will have to go back home - Germany - and get it done, however I can ill afford this as I am self employed.

Can you say which one? I can tell you where the nearest Medicover clinic is, and they are happy to run pretty much any test you want (for the appropriate fee).

is hcv disises affceted while going poland ?