Greg,
I went to that hardware store earlier and as I suspected they did not carry the TRPS, although they had just about every other product that Sunnyside sells.
I did decide to try one of the products they had so I bought a quart of Sunnyside Specs paint thinner which is a low-odor mineral spirits product.
http://www.sunnysidecorp.com/gold.htm
It sounds like it may work good. I noticed that the odor of it smells almost exactly like Kingsford starter fluid for BBQ briquettes. I believe those starter fluids are kerosene and Naphtha so they are similar I guess.
I will see how it works later.
Mike
“Wisdom is the right use of knowledge. To know is not
to be wise. Many men know a great deal, and are all the greater fools
for it. There is no fool so great a fool as a knowing fool. But to know
how to use knowledge is to have wisdom. " Charles Spurgeon