I just took a look at your other thread, Sarah. WHAT A LOVELY TRUCK! !!! The oil filter canister is the thing (in your engine pic) between that pretty little alternator and your circled area. Directly behind the turquoiose-looking tie strap that holds the red and blue wires to the brace. Unless you live and drive in very cruddy conditions, you don't need a filter if you do oil changes every 2,000 miles.
"My FIL is green with jealousy and talks wistfully of his 54 and 48."
What's an FIL? Can't really blame him, whatever he is. When you get tired of his whining, you can show him the swapmeet section and explain to him that, since he'll NEVER drive your truck unless you are very close to death indeed, and even then only with your express permission, and with you prone in the back, facing forward with a handgun in case he screws up, he might as well shyte or get off the pot, and find his own old friend, because this one is YOURS!
You definitely need to take ttodd's suggestion if it is possible. Your leaky carburetor probably doesn't need to be rebuilt, for example. It is more than likely that the machine screws which hold the top casting to the bottom one (if that is where the leak is) are asking to be tightened a bit. Don't do it yourself without supervision, because you might overtighten them, thereby doing more damage. By the way, I really like your fuel filter. Can I have it? (hint: NO!) Your valve cover, another prime example, is a stamped steel piece which, if its hold-down bolts are overtightened, will continue to leak even though the gasket is okay, until it is taken off and straightened, then reinstalled properly, with the correct flat washers(which are easy enough to make with a file and a vise if you don't have them). Most of the necessary repairs on this truck can be made either with vast infusions of cash to an unscrupulous self-styled "mechanic" or with a little old-school knowledge, which you might well find wasting away in a rest home somewhere.