[cabmandone]

Ground prep is easy. 1 Bobcat MT55 and a sod cutter. The sod cutter strips the sod and the MT55 is for putting in the sand base. You mentioned the pool is resin but I think that's just the uprights, upper and lower rails and the cap. I think the walls are still metal with a resin coating but being less than 1 year old you should be golden. As far as maintenance, I cover my pool in the winter and I sweep and bring it to shock level before draining below the inlet. I close the pool much later than most. I wait for the water temp to get down into the 50's. I also open my pool earlier than most which avoids the murky water most get when opening. I add about 1 gallon of liquid shock when opening to bring back up to shock level and my water is crystal clear every season when I open it without any struggle. I have a water test kit and test the stabilizer and add to get it to the 40ppm range. From that point on, I check my chlorine with a cheap chlorine/PH test kit from Walmart. I keep the pool in the 3-6 ppm range which requires about 1/2 gallon of chlorine each day when it starts getting hot outside (more sun and more people using the pool means more chlorine use). I was freaked out by the thought of maintaining a 30 foot pool but it's really not bad once you understand how it all works. I pay very little attention to Alkalinity and only occasionally test PH. I don't recommend one of the floaters with chlorine pucks, they're easy but the pucks add stabilizer which means you need more chlorine to keep the algae at bay. A salt system is what I'd like to go to next but I'm not sure I can justify it since I spend less than 1 hour a week maintaining the pool. I literally walk out each evening, check the chlorine, add as needed and go back in the house. A pool robot for cleaning makes life a whole lot easier.
If you want to do some reading go to TroubleFreePool.com and look at the BBB (bleach, Borax and bromine) method of pool care. It's really easy and it's what I have been doing since I got our pool.
For a winter cover I have one with a mesh in the middle that allows rainwater to go into the pool during the spring so as long as we have a normal amount of rain in the spring, it's full when I open it. If you need to get a cover, I'd recommend a micro mesh winter cover that allows rain water to go into the pool.