Clark...
Those wheels and that SS Reservoir Tank are NO GOOD for that car.
I'll be happy to send you some "proper" Steel Wheels and a Plastic Tank just for the price of shipping and be happy to "dispose" of your old junk so their is no negative impact on the environment...
OK... I'll be truthful now...
I personally do not like those wheels but there are folks here that would KILL for them.
Yours are the popular CD 31's or 32's for our cars... ala Ferrari 308's of the day. My favorite is the CD 30.
The SS tank is now a NECESSARY item because even if one were to find a NOS Plastic Tank, it would still be 40 years old and probably crispy. Aluminum & re-pops are available these days but you shouldn't need one.
The rest of the car looks good and cleaning it all up the way you want it should be fun. Do check that front spoiler as I may have detected it being bent in a bit. Its a necessary part and about $250 bucks to replace from the Netherlands.
I see you also have the sought-after RED turn signals in the rear too... needs some new weatherstripping around the perimeter of the Targa and door openings (DO NOT TOSS the two corner pieces if OK, new re-pops can be had from Ricardo id necessary.) We can discuss several trim options later.
DO check the body with a magnet and by tapping to see if there is any Bondo... look under the car in fender wells and also try to move the windshield looking for rusted or a weakened frame. You will probably need him to do this and SWEAR on a refund if he lies... in writing!