Gerry, boat stores normally carry this paint, West Marine is where I bought most of mine but there may be cheaper places. You can call Interlux and tell them what you are doing and they will be glad to help. Clean the surface very well and wash it with TSP to remove wax, got this at Lowes. It was easy to do, measure the amounts of both paints you mix. I also added a very small amount of Penatrol and reducer to help it flow, although this is not necessary. Use the 4 inch white foam rollers and roll it until it is sticky. Watch your roller and don't use it until it starts to come apart, small bits of foam don't look good in the finish. Rolling it until sticky will cause the roller to not last as long although they last very well. Keep a wet edge to paint to. It will flow and shrink to a nice finish. The heavier you put the paint on the longer you will need to roll it to prevent runs. Absoutely no need to use a brush at all unless to trim where a roller will not go but if the taping is well done a brush probably will not be needed. The proper primer and lightly sanding it is definately worthwhile. I used three coats of finish paint. A 4 in. roller seems like it will take a long time to do the job but it will go quickly. You can do a small area and watch it a few minutes to see there are no runs and it begins to flow to check out your technique. If your technique looks good go for it, if not wash it off with reducer and try again. I suspect your first attempt will be good. You will move slowly to start but don't be afraid of this job once you start move on quite rapidly. Roll rapidly and when tacky move on don't mess around, just do it. This paint is very forgiving. Good luck although I suspect you will not need luck.