I agree with the others if you have not done any paper piecing, do a small project first , get some of the learning curve on a smaller lesser $$$$ investment type first.
Paper Peicing is not hard it just has a learning curve as the process is quite a bit different. Some "get it " right way others it takes a bit longer.
That quilt once all the fabrics and pattern is added up it can be quite pricey .... so invest in practice.
Paper piecing does take longer than traditional .. so some abandon big PP projects because of the amount of time it takes to complete.