I'm with Tex S. Sell that belt or those weights and buy two fifty pound boxes of WW ingots. The twelve pound dive weights sell for $26.99 each at Leisure Pro.
http://www.leisurepro.com/Prod/Categ...ULW.html?Hit=1
You can buy the ingots for $45.00/box(including shipping) from clintsfolly at Cast Boolits.