Hi Scott,
It's very difficult to have both in a 6 mtr boat . It would be very hard to have an Under floor tank of 150 litrs and a kill tank which has to go somewhere, so if you look at my triple 5 you will see front and rear inspection ports which more or less show you the beginning and end of the tank, the inspection ports giving access to hose clamps. There is an area at the start of the cabin at floor level which is semi plumbed, there is a bung hole already there. I was toying with the idea of using this as my kill tank, but don't like the idea of having blood and scales running under my floorboards to eventually drain via the main bungs at the transom. Maybe a bilge pump and hose placed in this section will work but being up the front of the boat I expect a fair bit off sloshing around - too close to the bunk cushions according to my missus, so the whole idea has been squashed
So after failing to get Santa to deliver a bigger esky for Christmas, my whinging may have gotten me my wish for my birthday coming up soon.
The fish can bleed into a bucket for a few minutes before being released into the esky.
The standard sounder offering at MT was very "average" IMO, I upgraded to a combo which is the Humminbird 788ci.
http://store.humminbird.com/products...063d8e2f61c204
Very good colour graphics, very convenient having a split screen GPS and sounder while under way, and it has two SD card slots so programming my waypoints can be done on my computer, downloaded to the SD card via the free humminbird software. Place the card back in the unit in the boat and it instantly recognises the changes. Many prefer separate GPS and sounder, but when you are trying to stick to a budget which had already blown out for me, this unit was a perfect compromise.
I would not do any after market accessories, it's a lot of running around just to save a buck or two. Taking delivery of my new boat you will just want to put it in the drink, turn the key and having everything done from word go!
The main difference between the two models is that the triple 5 has similar to a pod, the engine is mounted on this. My previous boat had a transom replacement so I have become paranoid, I really like the idea of mounting the engine on the pod instead of bolting onto the transom. The other difference is a small ledge around the cabin you can walk around the outside, which I thought was significant when I purchased, but since feel too unsafe trying to get around my radio arials to use it. More cabin space in mine too I beleive.
Let us know how you get on.
Scalem