The IIcx has no built in video, it is a smaller 3 slot version of the big 6 slot IIx.
You need working batteries to boot a II, you can desolder the old ones and solder in new ones found on ebay for $5 each plus shipping (should last a few years). The upgrade circuit board with removable batteries is probably very hard to find now, and will cost more then it is worth if you did find it.
For the Mac II or IIx to use a daystar upgrade you need to find a very rare and expensive adapter that plugs into the CPU/FPU socket on the motherboards, a IIci is MUCH cheaper and easier to put a daystar into (no adpater required).
Mac II and IIcx are 68030 CPUs that will only run up to OS 7.6.1, 8.1 with a hack. With only 8MB of RAM I recommend making 7.01 install floppies (found on Apples site for free), or finding a set of OS 7.1 somewhere.
Do you have any picture of the condition of the units?
You need working batteries to boot a II, you can desolder the old ones and solder in new ones found on ebay for $5 each plus shipping (should last a few years). The upgrade circuit board with removable batteries is probably very hard to find now, and will cost more then it is worth if you did find it.
For the Mac II or IIx to use a daystar upgrade you need to find a very rare and expensive adapter that plugs into the CPU/FPU socket on the motherboards, a IIci is MUCH cheaper and easier to put a daystar into (no adpater required).
Mac II and IIcx are 68030 CPUs that will only run up to OS 7.6.1, 8.1 with a hack. With only 8MB of RAM I recommend making 7.01 install floppies (found on Apples site for free), or finding a set of OS 7.1 somewhere.
Do you have any picture of the condition of the units?