
Welcome to Stamp Community Forum, vovanich123!!
The "gold" replicas typical wholesale for 10c each, and retail from 25c-50c each when undamaged and unaddressed. They are usually rather slow sellers to stamp collectors, as they were primarily produced for the general public, not really for stamp collectors.
The PCS album (same company that made the "gold" replicas) will retail for $10-$20, but same song and dance as the covers. Very hard to find a buyer. Most people get turned off by the shipping costs. A dealer might offer you $2-$3 for it. It depends on how the stamps were mounted. On some pages, PCS mounted the stamps in SEALED hard-plastic mounts, and the stamps cannot be removed without cutting the seal. I can't tell what kind of mounts are on your pages. If you have the sealed hard-plastic mounts, the dealer might not even make an offer at all.
If you cannot sell the entire album, you may want to just sell some individual pages. The US flags might find a buyer more readily at face value, and some of the more popular topicals (butterfly) is also more likely to be sold.
Your friend may be disappointed. But the fact is, PCS material has a very very low resale value and low resale potential relative to original cost.
Others may have a different take on this...

Kim