I've read the Start Collecting boxes are quite nice to build an army from, especially if you make a few conversions. Can you build a competitive army from the models included? For now I want a 1k army, but I'd like to be sure that what I buy now can evolve into a 2k list. For now the plan to buy is 2×SC! + a Slann Starmaster and a box of Skinks. Are there any nice additions I can get now that won't break the bank?