The easiest way to do a 1 gallon batch is to re-purpose one of those 1 Gallon jugs of table wine (e.g. Carlo Rossi). That's where I got all my 1 gallon carboys. If a local restaurant or something serves wine like that, you could ask them to save the bottles for you. If you're in a state that does bottle redemption, you can offer the restaurant more than the 5¢-15¢ they'd get in rebate for the bottles. They'll get more money, and you'll get a carboy for less than a dollar.
As for the 5 gallon carboy, put out the word to see if someone is going to an area near a brew store and see if they could either take you along, or pick up the carboy for you.
Ridding the world of the scourge of alcohol. One glass at a time
Primary - Cranberry wine, Pomegranate Raspberry wine
Secondary - Nothing to see here. Move along.
Bottled - EdWort's Apfelwein, Cyser, Paddy Murphy's Pumpkin Mead, Côte des Bochet, EC-1118 Bochet, MAOM, Mango Melomel, Singles Awareness Day (SAD) Strawberry Melomel