'72 Scamp Can I just fix the front brakes to get it home?

For the record, the thing that some people are calling the "emergency brake" is NOT actually known as that.
It is a Parking Brake in all of the factory literature and even written on the handle. It engages one of the brake shoes on each rear wheel and provides vey little actual braking in panic stops. Yeah, you can get the parking brake to skid but up to that point, it is terribly inadequate.
I know, paying for towing sucks but some of the members here are trying to steer you right. Brake safety really is important. I take risks with a lot of things but good brakes is really important to me. It should be for everyone.
Drum systems do work well when they are functioning correctly. The parts to fix the car shouldn't be too hard to find but they may not be in stock at the auto parts stores, they will have to order some things. I've even had to order a master cylinder for an old Dart....a car that was produced for 14 model years and shared mechanicals with the Valiant models. There were millions of these A bodies built but most are gone.
If I needed a water pump for a 2007 Honda Civic, I could have one at any auto parts store in town.