I wouldnt recommend using the engine (YS 1.10) en the UCD 46!! Ok, you will have unlimited vertical and 3D, BUT (note the BUT), as you are learning to fly, you will fly level, and this engine is way heavy, and will have a higher wing loading, so that means you will have to keep it a little fast, and come in hot for a landing. Plus, it is a very big gamble to learn to fly on such an expensive engine.

Viktor