for the general SoCal folks...
2nd on Johnson's if you need a corner balance as well, which you can't so don't bother asking - he races Porsches and when I had mine done there he had another teener come in with the same Sheridan body work!
WAAAAYYYY F'n cheaper than $450!!! That is out of line, not aligned. As said, you can't corner balance your car anyway (need adjustable suspension fr and rear), but when I first assembled my car about 3 yrs ago I went to Johnson's and had it aligned and corner balanced and I think it may have even been under $300, if pricing has increased (as I am sure it has) I would be surprised if it was now $450! $300 to align a 914????
It was $150 for the corner balance at that time as well and he too ballasts the seat to match your weight, etc. That is standard for balancing a car.
Jae does good work as I understand and has fooled enough people into thinking he is worth it (kudos to him! holy crap) but that is "Porsche pricing" for a VW car
For you specifically...
those are way too far from Yucaipa to be of value. Frankly, just call around locally as a first step and see if you find a guy that immediately knows anything about shimming the rear - I found regardless of where I lived with a 914 in SoCal I could find a guy within 20 miles of my house every time that I could ask "how do you align the rear of a 914" and if he mentioned the shims he could do it just fine. Most guys will say "we put the laser thingy on the wheels, blah blah" and never mention the shims - don't go there hahahahaha
edit - oh yeah, makes sure they HAVE SHIMS for the rear and/or I would recommend bringing your own. I used to have a bunch from cars I scrapped over the years but no longer have trailing arm rear suspension so gave 'em away.