nice ideas - but building a mod on what is perceived as "mistakes" on the parent mod won t make you happy.
the mod appears to be inspired by all the negative things on disco - the only new stuff appears to be the unknown systems etc. ( good idea there )
all in all - i don t think you need igiss permission - cause you make an alternate vanilla rather than an alternate disco.
might be quicker to simply ask the modellers if you may use their ships - or you don t do if you got the modellers.
either way - a mod rises and falls with its members... that is why i don t give even high end mods like freeworlds a great chance - except as a tech demo.