Joe:
Your Model L would have been made sometime between 1968 and 1973; these were the years that the L was finished to match the TOL Model 1205. I have one in storage that's identical to yours.
You did very well for $12! The fact that the wands, the combination floor/rug tool and the crevice tool are present is a huge plus. You lack only the combination dusting brush/upholstery tool to have your machine complete.
Turquoise dusting brushes in good shape are getting a little hard to find. There is a soft rubber part inside the brush that tends to crack and tear over time. If you find a dusting brush with this problem, there is a fix: SuperGlue. It bonds rubber perfectly.
If you want a power nozzle for your machine, the correct ones for that vintage Model L are the PN-1 in turquoise, or the PN-2, which was a polished aluminum unit. Early Ls used a non-electric hose, with a separate cord that was clipped to the hose with turquoise plastic clips. You can still buy the cord easily on that auction site, but the clips are unobtainium new; your only chance at them is used. You can also use Rainbow hose cord straps (which come in black only). Late Ls used an electrified hose with a "pigtail" on it to plug into the power nozzle port. The 1974 gold L I just found uses that arrangement.
If you want to put a PURDY shine on your L, I recommend TR-3 Resin Glaze, a car polish/sealant available in auto parts stores. You will end up with a blinding shine on that beautiful turquoise paint.
Another thing - all the brush bristles on your tools are replaceable. That auction site is one good place to look for them if you ever need them. Even the dusting brush's bristles just pull out (they're mounted in a metal strip) and a new set snaps in. Also, that cordwinder is rebuildable if it ever gets lazy about rewinding the cord. You will improve the rewind a lot if you will make sure the cord is clean and then dust it with a little talcum powder; that was Electrolux's recommended lubricant for the cord.
Great machine! You're lucky.