Questions about building a vz.58

[JDA70]

I'm considering buying a parts kit and an Ohio Rapid Fire Receiver
and building a vz.58

First question I have is How do you press the barrel in so that it is
at the right rotation so that the piston is parallel with the barrel?
How do you get that right so there is no binding?

[RSR]

AWO/ORF sells some barrel press in tooling that another member purchased and offered to loan out for a small cost sharing fee a month or two back.  Since he's done it, might be able to offer advice.

[JDA70]

Thanks.

The next question I have is
The barrel channel is .826 on some of these Ohio Rapid Fire Receivers
and original barrels are .826 is that going to cause a problem?
I know some of the ORF receivers were .824 and .825 and that is what people
preferred but does it really make that much of a difference?

[CitizenPete]

I think ORF will press in the barrel and set the head space for a fee. I can look up the email quote they gave me last year -- if I can find it I could post here.