Seems like you would benefit greatly from a mobile deck and table. Since you have the ability to lift logs, setting them onto a deck and then rolling them into a cutting position, cut and then roll the rounds onto a staging table next to the splitter. @Sandhill Crane is way more serious about his setup than I am mine, but the philosophy is the same. In fact, you would handle the wood less than I do since you throw into piles off the splitter.
http://www.arboristsite.com/community/threads/bucking-table-mostly-done.307764/
http://www.arboristsite.com/community/threads/bucking-table-mostly-done.307764/