Wiring Question

I got the wiring harness from EZ wiring.

There is a set of wires that goes to the instrument cluster. The wires just end. There are no connectors or bulbs on them.

My cluster has the connecters and bulbs but they are old and nasty. So I am looking for the little unit on the end of the wire that holds the bulb and fits into the back of the cluster. I have 4 with 1 wire leaving them and 2 or 3 that have 2 wires leaving them. There are several other connectors as well but I wanted to know if anyone sells a kit that will allow me to replace these connectors and bulb sockets.

I will order a couple of those. I suspect I am going to just have to cut all the wires to the cluster and splice them into the new wiring harness. I am surprised no one sells a cluster/guage/warning light harness that is a single unit and can be spliced into a new wiring harness.

Oh well.