UPDATE FROM THE ORIGINAL POST-
Guess what showed up today? The FIRST package I sent, dated October 11, 2011! The package is is still in good shape, although it does look like it's been around the world and back!
So that means all is good because I got payed for my services, he got his HVFF kit, and I got my lost inventory back! All I'm out is the shipping, which I can deal with.
Interesting that it took nearly 5 full months to get it back- Better late than never! I feel a lot more confident about International shipping after this. It's tough when it takes that long because it makes you think nobody cares and you are all but helpless.
Anyway, I hope this situation ending in the best possible scenario gives some hope to others.
I swear I would have bet $100 that original package (which had the wrong address) was never coming back, LOL! Lucky I'm not a betting man!