Why do you want to replicate this old and crusty design?
Do you realise that the link I gave you contains most of the information you need?
OK, one more thing -- there are emitter resistors. You'll probably want them to drop about 0.1V to 0.3V at maximum current. (so a value of 0.1 ohms is probably OK). And the power transistors will need significant heatsinking.
What are you planning to use for Q2 and Q3? 2N3055? You need to carefully consider the choice of transistors as the 723 is very easily destroyed by excessive current. It will happily destroy itself if you overload the regulator.
C1 is normally 1000uF per amp.
R8 just exists to discharge C1, so any reasonably high value is OK. 1k to 10k perhaps -- make sure you are a little generous with the power rating.