Roller stands would be adequate for a short run, however, if you are planning on doing this more and more often or a large run I'd consider true outfeed tables. You can get Aigner (or similar) extension tables that basically hook on a rail mounted to you bandsaw table (which can be taken off and stored easily when not in use), or, since I use my bandsaw as an everyday saw I have a dedicated outfeed table for it. That table is mobile though, in case I needed it as an extra workbench or something similar. The other advantage is you can stack your pieces after they are cut on the outfeed table. For 4-6 footers you should be fine with just outfeed support, but for longer than that I'd consider support on the infeed side, as well. For that I have another roll around utility bench that I use there and many other places in the shop, depending on need. Here's a picture with both tables in use, and on the side of the bandsaw table you can see a mounting bar for my Aigner extension tables, which I use on the side quite often, and on other machines as the need arises.