I,ve made my motor cover patterns from brown painters paper availabl;e at lowes, etc. in 3' wide rolls. Always make mine to reach far enough to cover prop but that's because unless freezeing my motor is usually trimmed up out of water . Thread available at Walmart, heavy black or brown nylon. Needle size appropriate to thread size available. My wife sews pieces together on her home machine rather easily. 1000 denier cordura nylon is what I,ve used. The part that takes the most time is sewing on grassing loops. Designed and built a new roofed cordura nylon blind for my 20' seaark jon this fall. Now the sewing of that did take a few Saturdays. Motor & gas tank covers easy peasy! Mud that cordura before using to eliminate shine. The cordura drys quickly after hunt and lasts forever stored out of weather. And does,t turn unto a sodden mess when wet!