Try this...
http://www.budgetboats.net/
some of the guys have used this... :)...
If ANYTHING is salvageable on your trailer...you might be able to put her back together w/ parts from Champion Trailers...they sell the entire suspension systems(sliders) w/ springs, axles and all...
Sorry 'bout your debacle...sounds like a nightmare I had once...hope nobody got hurt and all turns out well for ya!!... :)...