Subframe connectors for a driver/cruiser, necessary to weld to floor?

My 1973 is a driver/cruiser, and I like to smoke the tires now and then, no racing.

Originally a 318 car, now a warmed up 360.

* Update, FYI also has an 8.75 with 355 gears. Auto trans with shift kit.

I'd like to weld in subframe connectors, and I was thinking about fabricating them myself.

I know that ideally the subframe connectors would be welded to the floor, however my undercarriage is coated and I would like to avoid stripping the undercoating, also my interior is fully installed and I don't really want to spend the time removing the seats and carpet.

Is it worth it to simply weld connectors between the subframes without welding to the floor?