OK, Mickey, settle down, you're scaring the neighbors!
Unfortunately, I can say with 99.786% certainty that nobody is going to offer you even the current exchange rate on your Dutch notes
. The only way to redeem them is to send them to the Netherlands central bank, which will NOT be cheap OR insured, along with a copy of your passport or other ID that is acceptable to the bank, and have the equivalent amount in Euros deposited into an account. The current value of the Guilder is about 63 cents US, so after shipping expenses, currency conversion expenses, etc., your 1,015 Guilders could net you around $500-$550, assuming they don't disappear in the mail, and that none of them are counterfeit. I have a VERY hard time believing that you will be able to sell them to any collectors for even 50% of the conversion value, since the vast majority (read: all) of collectors would be looking for crisp new bills on such modern notes, and the redemption process is very difficult unless you are going to the Netherlands anyway.
The coins that you have listed, assuming they were current pocket change when acquired, will sell on eBay for $5 to $8 per pound, or your local coin shop might be willing to pay $2 to $4 per pound, if there isn't much duplication. The conversion value on coins is irrelevant, since even those which are still current would require you to personally exchange them in their respective countries for 'real' money.
Sorry for the bad news...
