If you want to get out inexpensively, combine a low wattage guitar head with a bass cab miced up, plus a clean DI. use the DI for low end, and the cab and amp for mids and highs. combine to taste. You can even use one of the wee 5 watters for this.
You might look at some vintage Traynor YBA's, the low watt ones might work for you.