so you have UR and UW at dash that are linked to said connectors .the horn i assume is fitted somewhere near the front .
the UR , UW and U sheathed together where the old floor switch I would put these through the dash and the single UB they are not needed but do not cut them they
could be useful later on .
So you have the necessary UR UW ,B TO WIRE THE HEAD LIGHTS you will need new H4 connectors on the head lights them selves .
the connector with the R 's are the front side light and could possibly be the tail light feed connection point and you should have a R at the dash from that connector (check with meter) ,I know from previous images that you have the two GR and two GW indicator wires at the dash and they appear to be a part of the drivers side ,is the GR long enough to reach passengers indicator lamp and do they go to the rear indicators (check with meter) hope you get what I'm
saying