Aloha !
You're saying you're very much into sound quality, but wouldn't that mean you'd rather want FLAC files instead of MP3's? I know they're on import CD singles and some might be a little more expensive, but as there is no place where you can download them it's the only way to go.
The cheapest way to get the tracks you want is;
House Of The Rising Sun (Live)
CX 21 578 261-2 Hey God UK CD Maxi Single
Helter Skelter (Live)
CX 20 852 747-2 These Days UK CD Maxi Single
I Believe (Clearmountain Mix)
862 677-2 I Believe Europe CD Maxi Single
Going Back (Live)
878 523-2 Miracle Europe CD Maxi Single
Love Is War
PHCR-8031 Living In Sin Japan CD Maxi Single
Borderline
PHCR-8027 Borderline Japan CD Maxi Single
This all will cost you roughly 60 dollars if you manage do get good deals on them, and it'll give you a few other gems like Born To Be My Baby acoustic and These Days live from Johannesberg 1995. Hope this helps, good luck.
Salaam Aleikum,
Sebastiaan