back space question

In my humble opinion, you need to get rid of the front wheel spacers, and convert the front to big bolt pattern. That way you can buy whatever wheels you want. I had a BAD experience with those bolt pattern adapters 50 years ago. In 1969, I bought a new 69 340 Formula S Barracuda Fastback. SBP wheels were HARD to find. After about 6 months, one of the adapters came loose and caused a lot of damage that was of course, not covered by warranty. I would personally get rid of them ASAP. I know that others will say that they are no problem. All I can tell you is what happened to me.