cperez, to find that wheel, do a search on eBay motors for "19" LR4 wheel". You may be able to find your style wheel.
Update: PaulLR3, I wasn't able to find my style wheel for an acceptable price on ebay or craigslist but I found an online source that seemed trustworthy and had a better price ($239.99 delivered). The wheel arrived on Friday while I was on another road trip (on the same road where the blowout occurred...for good luck I stopped and bought something at the gas station where I had stopped to air up the donut the last time).
My wife took a photo of the reconditioned wheel and texted it to me. It looked perfect even through the shipping plastic. I hope to have it installed this week. It will be nice to have the security of a full-sized spare before several upcoming road trips. Boston in 2 weeks; then Auburn, AL, for my daughter's graduation, then Northern Michigan later in the summer and hopefully several long weekends mixed in.
Now I can focus on my hitch receiver research...