Victor,
Look at
www.warbirds-rc.com , as Markos has the largest selection around for EDF jets. I recommend a Minifan sized model as you can then move the power plant from model to model, of which there are many to choose from as you will see. You can also use the same battery between jets. Moreover, there are online instructions in the "Research Center" section for many of the models and you can get a good idea of how it goes together. The quickest ARF's assemble in a few hours, while others can take longer.
You can get a model, fan, motor and ESC for as little as $300, depending on the model. Another key note is that all his prices include free shipping. Good luck with your shopping and keep us posted.
Carl