Towing a Buick LaSabre

We have a 2001 Buick LaSabre that we will be towing behind our Class A MH. We plan on buying a tow dolly and a light bar, is there a better alternative for wiring ie using the vehicles lights instead of monkeying with a light bar? Also, we heard about towing w/4 wheels on the ground using a Remco Pump? Is this a better cost effective way to tow instead of using a tow dolly? This is our first shot at it and the only car we have to tow. Please, any info would be greatly appreciated. Thanks