Best place for ground under dash?

I'm looking for a place to ground some things under the dash - MSD, aftermarket gauges and so on.

I'm thinking the steering column bracket.

Or, since I deleted the heater and blower motor, I could use the bolts that secure the block off plate and hook up some wires with ring terminals behind the plate on the inside of the firewall. There's really no paint behind the panel there either so that would be good, no?

Back lip of the dash maybe?

Just looking for some clever ideas.

Thanks!