well First, The repentia squad is from the witch hunter squad and the daemonhost from dh, and i think the echleciarchy dont get along well with the relictors, on the other hand the repentia are pretty useless for the work you want them to do, because they will die before they get to combat.
I have some suggestions, if you want to use the Inquisitor lord in cc, you should take some meat shields, mainly acolytes(you can buy them some armor if you want them to resist more) and familiars, to at least hit with the power fist before they kill you, and ride them on the land rider to keep it safe until they get to combat.
Drop the repentia, and with the points try to add a close combat squad from space marines, you might want to deploy something fast that can get to combat in specific places (to use the daemonhost to its best, keeping it safe from power fists) so you could add a bike squadron or a assault squadron, or maybe two of them so you can charge in two different places.
I dont like the master of the forge, but thats only me, and for the relictors i dont think the master would ever leave the laboratory with all the xenos relics that he have to work, so you could field a Captain with bike/jumpack to aid you cc squad
the predator and dread are fine
And the marines, i think you wont be using the melta gun unless you buy them a rhino, so you can drop it to have more points to spare and use them as fire support to you other units
hope that helps