I've built the the Royal, TF, and just finished a test hop of my PICA. For scale, go with the Royal (now Maurataka) but the price and skill level required is very high. The TF would be my next bet for scale, and so far, IMOP, is the best flyer because I can build it light and the plans are the best. For building ease and price, you can't beat the PICA. The only issue I had with this kit was final set ups, the plans leave you to do a lot of guessing, which is not good with a Corsair. I am planning to test fly it next week so I hope to be able to give some insight on how the PICa flies compared to the Royal and TF.
Scott.