The boat, named "Faith," is sitting in an unused tennis court next to their home on State Road 42.
"Can you imagine working on something everyday for four years?" Tom asked when explaining where the name came from. "You have to have faith that you're going to get it done."
The ultimate goal for the project is "that the boat floats," Tom said with a laugh. "We're building transportation here, so we can go someplace."
When asked where they want to go, Tom replied, "everywhere."
"We want to gradually find out how strong it is without risking our lives," Tom told The Brazil Times.
The couple plans to take the boat by truck to the Ohio River. From there, "Faith" will enter Kentucky Lake and head toward the Tennessee-Tombigbee Waterway, a man-made waterway that extends from Tennessee to Alabama to link boats from the middle of the nation to the Gulf of Mexico using 10 locks that raise or lower boats a total of 341 feet.
Tom formed the steel housing of the boat by hand.
Creating something from the ground up is nothing new for the couple though, having built their own home, garage, a barn, several pieces of farm equipment and even a telescope, including grinding the lenses, by hand over the years.
The inside of the boat houses more than 100 four-by-eight sheets of marine plywood, as well as at least seven kinds of wood including oak, cherry, pine, walnut, mahogany, teak and more. The cherry and walnut woods came from the West's trees and cut from a sawmill Tom built years ago.
All of the wood, which is used for the walls, trim, cabinets, etc., has to be varnished, dried and sanded about five times.
"Can you imagine sanding that thing 14 times?" Tom asked.
When asked how he'll feel once the boat is completely finished, Tom replied with one word -- "relieved."
Tom said the most difficult part of building the boat was creating the 80-foot mast, which took him most of last summer.
"When you weld aluminum, it expands, contracts and warps," Tom told The Brazil Times. "That mast is made up of 21 different pieces that have been welded together, and it's pretty straight."
Tom explained when he was younger he had many different ideas about what he wanted to do when growing up. In his 20s, one idea included traveling by boat all around the world.
"I thought it'd be neat to go from port to port and see the world that way," he said.
During a trip to Hawaii, Tom looked at many boats.
"I was just goofing off, but that's when the idea came back to me. When I came home, I started looking up plans on how to build my own boat."
Tom said he didn't realize how much time, effort or money it took for such a project.
"I thought in two years, I'd have it done," he said.
Even though it's more difficult than Tom or Marsha imagined, Tom said he is enjoying the project.
"As an old man, I've done a lot of things, and it's hard to find something new or challenging," Tom said. "With this, there are problems to solve every day. It's rather challenging."
Challenging enough to test the faith of the West's.
"Each piece is very difficult," Tom explained. "Like putting the steel on the boat -- we could get one plate a day on it. When putting the plywood inside, sometimes it takes half a day to get just one in because you have to cut the patterns, try to fit it and go up and down the ladder all day."
Tom and Marsha have also had to deal with questions, comments and media.
"We've had more people from California come to see this boat than people from right here in Poland," Tom said. "A lot of people are really nice. But a lot of people aren't."
But no matter what struggles the West's have faced, the journey to build "Faith," has also grown their own faith.
"I watch to see if something flows or if it's difficult," Tom explained. "This has been difficult, but everything has flowed for it. Everything I needed has been there. The money for this has just kind of come in as we've been doing it. I don't know what's behind all this, but I do think it was intended."