I would caution you to consider that the 817, or a handheld if you should find one, presents a very low powered option. 5 watts can be sufficient to make contact, people do it all the time, but the setup would be very dependent on a highly efficient antenna system. There are a few handhelds out there that offer a 6-meter option (considered to be VHF), but even they fall victim to low power and end up being of more use when a 6m repeater is present.
As a beginner, I found it very difficult to learn the intricate nature of the HF bands when dealing with minimal power. I'm still no seasoned veteran, but I've come to better understand the beast of HF communications, and this has allowed me to use lower levels of power. Starting out I would encourage you to look at a radio with the capability of running 100w.