I have marine style clip in carpets in my 6.5m rig and it's great. It get's plenty of blood and smells like a fishing boat until I get around to giving it a good scrub. We get rain here in QLD so when it's forecast I leave the cover off and let the rain drain the blood !!!
If it doesn't rain I take the carpet out of the boat, scrub the stains with soapy water and then give it a bash to remove all the scales etc. Once dried, good as new.
If you want some cheap shoes for the boat, BCF have those slip on reef shoes for about $20. They are good for a year or so.
Cheers
Dave