Many of these are base cards that are no longer worth anything due to the over production of them in the mid 90s. The other cards are magazine promos and they are worth $0.5-1 each but not all Shaq collectors want these.
The Metal cards (if you have the complete set of 20) is worth something to a die hard Shaq collector who also collect non-NBA licensed products. Notice the pics don't feature any NBA logos. The good thing is because this set is bulky and heavy to ship from the US, the fact that it has already crossed the Pacific means local collectors can get their hands on this set paying less shipping. I would say the set is still worth $10-15. Domestic shipping will still cost you $8 upwards for this set, so maybe try face-to-face trade.