Nissan Patrol GU/GR Y61
Yep, link all the positives of the lights together from the 87 pin.
There is no reason to use two relays, total is 240w, ie 17 amps. Most relays are rated 30 amps.
You can if you want use two (no need though), just double up on all the above.
Make sure you protect all the wiring, cover it in...