having built a couple of Top Flight planes,with some wood working skills, and the ability to follow instructions carefully, there really not that hard,now saying that if you have never built a model plane before then you might want to start with a basic RC model like a Sig LT-40 or a Sig somthing extra,there basic slab sided planes with a built up structure and will give you some of the basic skills you can use later.

if your already flying a trainer such as a ARF and don't want another one then you might want to get your feet wet with a gillows rubber powered model there surprisingly simmilar to the larger Top Flight models, in the fact that they use stringers to form the fusalage and wing structure and you get a dose of building while not having to invest in a larger model you might get burn't out building on.

I don't want to discourage you from building your dream model but a TF Warbird is a big investment in time and money.
with my spitfire I have over a year in the building and at least 1,000$ my P-47 at least another year and 1,200$ with all the extras engine,retracts,paint,and finish, now I am a slow builder so I take breaks so it could be done in less time.

there's also some skills needed like sheeting amonst others that if you are not expierenced working with wood it can be quite a chalenge,I have been working in construction for over 20yrs so I was pretty comfortable diving into a involved build like a warbird.