how do i install the crankshaft pulley? on 2002 Ford Ranger

i removed crankshaft pulley to replace oil seal then found out there was no keyway...can't seem to get it timed correctly

Asked by for the 2002 Ford Ranger
You need special tools to line up the crankshaft and camshafts. Should have researched this first.
i only took off the one pulley...did not mess with anything else
so what tools and whats the procedure? do i have to open the timing cover to set the cam? can i set just the part i took off?
If you could put it back exactly as I was without marking everything you would be a professional. The reluctor ring is on the pulley and it has to be perfect for the crank sensor to read #1 for firing sequence. If you get lucky it might run. To do it right there is a tool to install through the block to line the crankshaft and another to align the cams then the bolt to hold the pulley at #1 and a holder for torquing the crank bolt.