Is ram 3500 SRW 6.4 hemi enough?

Ok so Im trying to look for a TV that I will keep forever(exaggeration). I have beeen going over the specs. I dont even know if i will be able to get one of these at an agreed upon price. I would like to spend $8000 on the diesel but cant afford it. Besides the truck will be my DD around town. I dont want dually cause I really dont need more than a 4000 pound payload which the 1 ton will do with 4.10 gearing. This 2015 truck that im thinking about will give me about 15500 pounds towing capacity. I am looking at toy haulers. I dont really want anything huge right now. But, I am trying to be prepared for the future (in case i want a bigger toy hauler). I dont see myself having a 42 foot monster that weighs 14000 but u never know. Im just trying to get as much truck as i can afford which i know is the right thing to do without going crazy. I wont be using it more than once a week in the summer (if that). Thats why i dont want a diesel also. Is there anything Im missing or didnt add? Thanks