As I Conspire wrote:btw im looking more for the safety aspect not looks, and going with cipher auto racing seats
If you're concerned about safety on the street, a CRX (or any 20 year old non-land-barge car) is probably not they best choice.
If you're concerned about safety on the street and insist on driving a CRX, the stock seats/belts are likely the safest part of the car - and upgrading them isn't really going to make any difference in your safety.
if you're still maintaining the 'concerned about safety' ruse, then pick up some decent FIA or SFI certified seats and belts, and install a roll bar (the autopower 'race' roll bars look pretty good, and are relatively inexpensive...).
cheap aftermarket 'race seats' with no certification on them are probably less safe than the stock seats, imo.
as far as position for the mounting points of harness shoulder straps, most harness manufacturers recommend that the angle between the tops of your shoulders and the mounting point should be between 0 (level) and ~15 degrees down. In terms of front-to-back, most feel that the bar should be as close as possible to the back of the seat - less belt to stretch in that case.