Purchasing parts

That is perfect with the pictures.
Yes the whole rear supension is from an 1969 and later Bug so it would use the spring plate grommets/bushings for inside one it would use a 1 7/8in ID Knobby grommet and for the outside a 1 7/8in Round grommet
I do recommend staying away from the SwayAway red urethane as the have problems with squeaks you can never get rid of. 
I personally like the yellow ones that SACO/German Auto  www.sacogermanauto.com  sells they wear good and have very little noise. 
I also use a grease called Super Lube, it is a synthetic grease #21030. It comes in a 3oz tube.  It has Teflon in it.

Now there other options too.  The stock rubber ones are available as a softer polyurethane ones that BugPack dealers sells.
Depending on what you are planning on doing with your buggy.  If mostly street, IMHO staying with the stock rubber will give you the quietest ride.

The rear brakes shoes you want are #113609537C for a 1968 and later Bug
The rear wheel cylinder (22mm) you what to use  is a #113 611 057B (this is a 1958 to 1977 front Bug wheel cylinder)
The front shoes you want are #113 609 237D which fit 1958 to 1964 Bug The end of the shoe that goes into adjuster screw is straight which should match what you have.  If they have a taper on the ends they are the later type that was use on 1965 and later.t
Wheel cylinders for the front are #113 611 053B are the 17mm rear ones use a 1968 and later Bug.

With what you have brake shoes will be the same width front and rear but will have differences with the end that fits into the adjuster.  The taper adjuster screw on the rear need to be incorrect position with large part of taper facing towards drum and narrow part towards axle.  If installed wrong, shoes will wear out very quickly.
Also rear shoes will have slots for E-brake crossbar to fit in.
Some times front replacement shoes will have the slots too. 

Something you may want to think about is installing a dual master cylinder #113 611 015 BD (part # for Varga brand made in Brazil)from a 1967 and later Bug. 
Using a dual master cylinder you can mount a reservior right on top of it.  The Varga brand uses one from a Volvo and the German one uses one from a VW Rabbit/Golf/Jetta.