Please ask your dad to send me an email (or mail me directly). I will be back in Romania in early July, I could conceivably hop over to Bulgaria to talk this over in person.
I've done a few other things like this with good results:
I just want you to know I teared up reading your post. I dont know the OP but I have gone through similar situation with my own father and am so grateful there are people like you trying to help total strangers.