Omg omg, that's a beautiful bunch!

To the OP:
Based on what I've read here, I also thought about (and finally bought) a 5/8 as my first "shave ready" razor to go along with the grand-grandpa's (also a 5/8). After shaving with it, I found it very good... that is until last week when received a 4/8 half-hollow Biedermeier from ebay. After cleaning up and some sharpening, proceeded to shave and bang, instant love , found it quite easier and pleasant to shave with, mostly in the more challenging areas, such as chin and neck sides. I'm still using the other two 5/8-s, but I definitely prefer the 4/8. So, for me (and my beard ) a 4/8 turned to be nicer to use as a beginner.

Regards,
Adrian