I've used crimp on
blades and
receptacles in the past...
Just crimp the connectors on to the bare ends of the wire, push the blade into the reciever, and cover the connection with heat shrink??
Dunno where in the world you are, but I get some of mine from
here... (Not the cheapest around, but one of the shops is just 5 minutes walk

)
BTW, it's not too difficult to learn to solder your connections - plus the soldered connections would be more secure.