Sounds like you will be anchoring in mud. A danforth type works well in mud and gives you the most bang for your buck. However they are bit of a pain to store.
A used one will be about $20 eg CLICKY
OH YES one of the things not said in the rain ,at 2.00 am ,when a 40knt squall hits is
" I think I need a smaller anchor and less chain. "