Oil everything that moves under the top, behind the face plate and under the bottom with sewing machine oil, or preferably Tri-Flow oil. After sitting for so long the old oil has solidified and seized up the machine. Also get some Tri-Flow grease or something similar to lube any steel or metal gears.
Once it's freed up then start cleaning everything. Get as much of the old oil residue out of it that you can so it doesn't resolidify. Then re-oil.
Expect to replace the belt too if it has an external motor. And don't forget to give the motor a drop or two of oil regardless of where it's at.
The cams can be had, I see a lot of them on Shop GW and eBay. You just need to figure out which cam it takes, there's four or five different versions.
The light bulb is a no biggie, they can be had most anywhere.
Joe