anchor stowage practical ideas needed please

[Robin3]

OK we just bought new anchor gear and went with a 45lb Delta and 150ft of 3/8 chain which is now all in situ on the boat but the anchor needs to be held firmly in place rather better in the bow roller. The previous poncy stainless claw anchor was drilled and a pin through bow fitting and anchor kept it in place. Is it OK to drill the shank of the galvanized steel Delta to use the same system? On our last UK boat we pulled the anchor tight into a 3 corner plastic fender which worked really well but a) they don't sell them here in the USA and b) we have no aluminium toe rail with convenient hole as places to tie one off to. There are over- centre type chain tensioner things sold here to tension the chain and pull the anchor tight intotheroller or we could just tie it in place with some line and maybe have a wood wedge or two to jam it in place in the roller fitting and prevent the potential for sideways sliding in lumpy seas and the irritating associated clunking.

All ideas gratefully received.