A planer was on my 'someday wish-list' because of budget limitations but a few weeks ago Ebay, then Amazon had the DW735X (with the extra blades and extension tables included) for $450. After a conference with my CFO (and loving wife), I placed my Amazon order and busted our budget to snag the good price. The next day Amazon's price was back up to $599 and the Ebay listing was sold out, so luckily I was able to be in the right place at the right time. I had seen many great comments and good reviews on the DW735 and although my experience with it thus far is limited, I will concur that it is an awesome planer and am glad to have it in my shop.
It looks like the DW735X is listed at $549 at Lowe's until 6/14/2018 which is a fair price, and additionally if you are a veteran the 10% discount drops the price to $494.
While the DW734 seems like a good machine, the DW735 has the edge on overall mass (12 lbs more), cut capability (though only 1/2" more), automatic carriage lock, the fan assisted chip ejection is quite powerful and a nice feature, and the ability to choose between two speeds is a huge plus to adapt between general planing at a faster speed or a slower and more fine finish. While the DW735 is a benchtop planer, it is quite heavy to move about so a stand-alone cabinet (with or w/out casters) can be an idea worth considering.
Keep in mind that for truing cupped or twisted boards, a trip through a jointer is often the first step to get a straight surface and a square edge, then the planer to get second parallel surface and then the table saw to finalize the S4S board. There are methods to get the first straight surface via the planer alone, but it is not something I have experience with, though it can be an option without a jointer.
Interestingly, shortly after purchasing my planer, an 8" Grizzly G0490 Parallelogram Bed Jointer in great condition popped up on Facebook Marketplace for $800 and after a short conversation and a one hour drive (each way), I picked it up for $750 - further busting our budget (loving wifey / CFO put a hold on any future purchases for a while).
I am in a similar circumstance in wanting to mill up wide boards (though in my case, they are from a former one-room schoolhouse in which I am dismantling and reclaiming the wood). My plan is to first mill one side to the 8" max on my jointer, then use a jig on the DW735 to get one side smooth, then complete the process by planing the jointed side. Instead of trying to describe it, Jay Bates created a video of the process that I am planning to use and perhaps it can be of use by you. (Note: Jay has another video that preceded the link below that he references and it can be helpful to view it too.)
FOLLOW UP/BETTER WAY: Jointing Stock Wider Than Your Jointer - 219 - YouTube
Enjoy your milled hickory. Do you have any particular projects in mind?