No idea on wood "matching" different species, but how many lumber yards did you check prices on (if you have more than 1 or 2 in your area)?
This place in DFW (South Ft. Worth), that lists their prices, has economy grade (2 com) white oak in both 4/4 and 8/4 for less than $5 per bf. So, if you don't need a long single run of boards, it may work.
No. 2A Common
Also known as “Economy” grade. Boards are 3″ and wider, 4′ and longer. Yields 50 percent clear face cuttings 3″ and wider by 2′ and longer. Grade of choice for US hardwood flooring industry.
No. 2B Common
Same as No. 2A Common, except that stain and other sound defects are admitted in the clear cuttings. An excellent paint grade.
Did a quick search, and found a counter on a murphy bar that has short boards and looks ok: