mounting rear bench and jockey console??

[hixxy]

ive got a jockey/centre console and rear bench seat made from wood and fibreglass.
im going to mount these to my avon searider 4 metre, what should i use to mount them through the wood and into the floor of the rib, self tapping screws??? if yes how long mm? or those nice hench expanding bolts ?
obviously im going to use silkaflex between the bottom of console and floor and im going to use silicon sealant in the holes made to prevent corrosion.
can i mount the the jockey/centre console slightly over to one side as some seariders have to offset the torque of the engine ( mariner 50 2stroke)?
if so does anyone know how much to one side i can go?
thank you for your help
ty

[PeterR]

I would suggest stainless self tappers, be carefull as they are soft metal compared to normal screws pre drill pilot hole and find out the thickness of your deck to gauge the length of the screws needed and thickness of wood off seats if you are still unsure check with any avon main dealer Fineways on the norfolk broads have a good repretation for being very helpfull good luk