simple copyleft with attempt at GPL-compatible provisions

[Forrest J. Cavalier III]

>       through a medium customarily used for software exchange.  You may
>       not charge any fee for the source code, other than to cover the
>       expenses that you incur in making the source code available.
> 

Is this restriction in the GPL?

The GPL states that if you distribute binaries you
must make source copies available for nominal cost.  But I
think selling source copies for a profit is allowed under
the GPL.

Based on the GPL #6 "no further restrictions" requirement for
combined works, I think it will be impossible to distribute
a combined work with materials covered by your license and the GPL.
I.e. it is not GPL compatible, (even with your second paragraph at d.
(But I confess I could find a way to read that paragraph sensibly.)

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