I’m in and out of the truck constantly so i carry long barreled pistols in either a cross draw or a shoulder holster. I’m right handed so it points towards the door and is fairly comfortable. I’ve a 10 1/2 inch 44 that’s just a pain to carry no matter how you do it.
You know how there are screw-in silencers? Is there such a thing as a screw-in barrel extender?
You could carry your 7inch longbarrel handgun everywhere, and the screw-in extender in a separate place perhaps strapped to your leg. Best of both worlds, if it works.