[Reece]

Looking at the Nostalgia Air schematic and the parts you have, you should be able to reasonably complete this set. You can remove the tubes and carefully mask the sockets, the IF transformers, etc., and spray the chassis with paint. Aluminum may be too shiny. Some use a shade of gray, or, looking around, you may find a sort of galvanized metal finish paint that is more like the original chassis color.

On Nostalgia Air is the diagram for restringing the dial cord. For cord you can use woven fishing line (not monofilament) which is about the same thing as the original cord: does not stretch. Available at WallyWorld or maybe right out of your tackle box.

For a speaker, any permanent magnet (PM) speaker of the proper size will do. The speaker socket is the RCA type phono jack on the chassis. If you don't have a loose plug for it let me know, I'll send you one. What size speaker does it take? Measure in the case diagonally from screw to screw: is it round or oval?

Don't know what you mean by "tuning arm." Please explain.

Grille cloth can be ordered from Radio Daze or other sources. If you Google "Silvertone 6220" images you'll see several pictures of your radio to get an idea of what the original cloth looked like. You may not be able to get the exact pattern, but something similar.

As to the paper capacitors, I'd just copy the mfd. and volt information off each one and make a list. Generally we use all 630 volt caps these days which will replace all caps of lower voltage, too. You may be able to get these locally in Houston or Radio Daze and other sources have them. I'd bet your resistors are OK in such a low voltage radio but check with your ohmmeter. Check primary and secondary of the output transformer with ohmmeter to make sure neither is open.

The dial scale is going to be more tough. You may just have to carefully clean it up and use as is. If the clear dial cover is missing, you can cut a scrap of acrylic to fit it. Often hardware stores that repair screens and storm doors have small pieces. Available in 1/16" and 1/8" thicknesses.

Battery packs like this radio used are not made commercially any more. It is possible to purchase custom made packs in original-looking cardboard covers with modern batteries inside connected up in series, etc. This tends to be expensive. Another cheaper way is to snap ten dollar store 9 volt batteries together + to - to make up the 90 volts required for the B battery. The A battery can be two D cells connected in parallel, not series, to provide 1.5 volts but with more time capacity due to the parallel arrangement. You can get a 2-cell battery holder from Radio Shack but you must rewire and relabel it to put the cells in parallel. Still another way, more practical these days, would be to provide a plug-in power supply that makes A and B voltage out of 120 volts. These are also for sale or you can make them up. They generally fit in the same space where the original battery fit in the radio.