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$75 would be a perfectly reasonable price for that particular Motorola if it is in good shape. If the CRT turns out to be good, it's a very good price.
Early sets without a flyback transformer use an RF step-up transformer to generate the high voltage.
Sets that don't use a power transformer typically use a two-diode voltage doubler running off the AC line. That's what this Motorola set does.
These sets work very well when fully restored. You'll definitely need to replace the 6000 V coupling capacitors going to the picture tube deflection plates as step #1. Suitable tubular caps for this are available from Just Radios.
Otherwise the usual recapping of paper caps and electrolytic caps is needed, and it's not a bad idea to replace the mica caps in the sync separator and sweep circuitry in these sets.
Most people will recommend replacing the selenium rectifiers with silicon rectifiers. I find that adding a 30 ohm 10 watt resistor in series with each rectifier brings the voltages back to where they should be, since the silicon diode has less voltage drop than the original selenium rectifiers. You also have the option to leave the selenium rectifiers in place. They are often in good working order, and at least in a few sets I've had where I've left them in place, they have worked fine for many years. (But someone is bound to reply that they smell real bad when they fail and therefore you've GOT to replace them now...)
The ballast tubes in these are almost always bad. I replace them with power resistors that I mount right inside the original ballast can (with one or two under the chassis if they don't all fit). Otherwise I hear there is a replacement ballast available that someone can point you to.
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