I think I would go for a used set of the 273 adjustable rockers myself before using ones from China. Too many chances for things to not be right. And your valve lift is not too high so the 273 rockers would work.
There are threads on modifying the the 273 rockers for better oiling so that would be worthwhile to read. My conclusion is that these modifications are needed more and and more as you push towards continuous higher RPM use. If you are just cruising around at low and medium RPM's, you may be OK without them. But I personally would do the banana groove modifications regardless of use.
And, the general concensus is that you will have better success with a smooth bore rocker rather than a needle bearing type for general street use.
Don't know of any of these adjustable ones where you won't have to also change pushrods. If that added expense is a problem, then you could always try the heavy duty stock type rockers like from Mancini. Mancini Racing Steel Rocker Arm Set, 1.5 Ratio
