The "Early Singles" disc in the box set is the only way to get "It Would Be So Nice" and "Point Me At The Sky" on CD officially. As far as vinyl goes, you can pick up the original 45's of course, or you can try to find "Masters of Rock" an import-only (made in Holland) early songs collection, which was an official release, but only has "It Would Be So Nice", not "Point Me At The Sky", unfortunately. The "1967: First Three Singles" disc that was spoken of does not have either of these, though it does have "Candy And A Currant Bun". So if you want those songs on disc, either shell out the $150 (c'mon it's Floyd, it's worth it :smile
or look for the "Early Singles" disc alone (try eBay, they turn up once in a while).