I Am Looking For Some Advice On These 5 Ounce Bars..

The good news is that your bars are true bullion items.
That means they should have LESS THAN a 10% markup over spot.
That means at the moment they should cost you at the most $115 per bar.

I am basing this price on how much it would cost me to buy them from my bullion dealer.

There is a little world of J-M aficionados and in that world, old poured 5oz J-M bars like yours command some premium. I also believe you did OK.
Another six of them, though? What for? If you intend to resell them, will your profit be certain enough and (after all ebay and Paypal fees) worth the effort?
That having been asked, I don't think they'd be a bad idea. I think a big consideration is your evaluating how much leisure money you have to cut loose
and how you choose to spend it.

Not bad at all - I would buy the rest and try to get them @ $140. Those bars are neat and I like older bullion JM / Engelhard bars as they do command a premium on various designs - some more than others. Just ask the people who own 4 or 7 oz Engelhard bars. Congrats on your purchase and best of luck.