"New" 01 Four Winns Horizon 180LE. Questions

[FourWinns28]

Got a pretty good deal on this boat! Has the 4.3 SX. I've been happy with the boat after the past 3 times I've been out, cosmetically good condition, runs beautifully! Just got a few things I want to do to it.

I want to do new carpet or seadek inside, and add a sun pad to the back of the boat so my girlfriend can lay out on it! Attempting to tint the Windows myself. Let me know your input!

 

[FourWinns28]

Also want to change the back seats into a full bench seat. What is the best way to go about this?

 

[Woodonglass]

Also want to change the back seats into a full bench seat. What is the best way to go about this?

Remove the existing seats, fabricate a plywood base from Ext. Grade plywood. Buy extra firm super foam. Glue it to the plywood Cover it with 4 mil plastic. Cover with Marine Vinyl. Done. Now...How easy is this...Well You can buy an old Singer sewing machine and sew your own cover.