This mod from Satry makes the trader immortal.
This makes the Clear Sky trader invulnerable to dying. As you might know,
when you edit the trader files, to make him sell stuff cheap or for free,
he usually dies when you buy a bunch of stuff off him at once.
Or even if you buy 1 or two items, he sometimes still dies or falls to the floor injured.
So this fixes the problem.
Remember to change the file fsgame.ltx>
$game_data$ = true| true| $fs_root$| gamedata
Use and ejoy