[klondike98]

Yes you can just replace the cap that has the coil of wire around it with a regular modern film cap although its not too hard to keep the coil as well. If you are stuffing the existing caps (i.e. taking them out, heating them to soften the wax and pushing out the guts, putting the modern cap inside and adding back wax or hot glue to keep the original look) you can just rewrap the wire.

You can use two individual electrolytic caps in place of that multisection cap. It is a replacement anyway and a different, philco multisection cap was in there originally.

Just Radios is a good place to buy caps. Take your time, this is a good radio to start on; relatively simple and lots of room to get at the parts.