What you have built there will work, however consider the weight of all those parts hanging off of that small brass pipe nipple. Reduce the number of parts by eliminating all of the adapters, and use aluminum if you can. I'd use steel for that first nipple and shorten it up. The rest, ideally would be aluminum. The way you have it now, I can nearly guarantee that due to vibration/harmonics the brass nipple will crack eventually, and there goes all your oil!