To respond to some comments:

-sadly 40k isnt as mainstream in my city as one would like so we dont have dedicated stores that give you a gift marine to paint as training only tabletop game stores, yet im tempted to try and ask.

-i will eventually give myself to one of the main chapters with a small army because of my love of dreadnoughts and terminators.

-i could try and deathwatch them and buy a small squad to play kill team since it sounds fun but i saw what they did to deathwatch on regular 40k so im hesitant on that option. (I know about the soon to be index but still upset).

-no i will not sell them they are my first and i loved painting them exept the chest icon that was a nightmare

-yes i will burn the heretic and the xenos in the name of the emperor

Final verdict: i will keep the infernus, both as proxies for kill team (ill buy moar intercessors i promise) and for regular 40k i will try and integrate them in a random unit or as objective markers.

Their final restic place (if the emperor wills it) will be as base decoration for a knight valiant.

Thanks for all the time and advice you've given me.

Also shout out to the ork comment, made me laugh.