Go with the press, I built my bench 2' x 4' and I have plenty room, my local gunsmith, (very good feller I might add) started with a 12" x12" area to mount his press, a guy at work has been loading for 40 years, he mounted his 1st and only press, a Rockchuker to a section of log,(read firewood stump) when he first started.
The press can/will give you much more control over the many variables, allowing more versatility.
Be sure to watch e-bay for used stuff, I got alot of my stuff there and saved 50%,,all was money back if not happy,,I'm happy
I've got a little RCBS Partner press for 30$+12 shipping, and guess what,,I'm loading for that 308 just fine, haven't got a real accurate load worked up for it yet, as I've been spending most of my time with my other barrels in the limited time during winter, but it handles that size case just fine.