Although it's a little more expensive and not scale, You may also want to consider the funtana 50x. The .46 won't have enough power unless you build it extremely light. but I think power will still be marginal. This plane will do anything you ask but the c.g. has to be pretty far back. My funtana is powered by evolution .61 and at a little over 5lb it's a perfect match. These planes help me excell realy well in 3d.
Nitro models has a .40 sized yak that may work out well also. I havn't flown one but I have their 90 sized extra 330l (isn't realy 90 sized more like 60 2 stroke) This plane is a 3d monster and suprisingly flies with good precision. At $130 it may be an option if you can afford an engine. I powered mine with a low cost gms .76 This plane flies similar to the yak on the sim.
Here's a link to my forum on it.
[link]http://www.rcuniverse.com/forum/m_5299445/tm.htm[/link]
Hope i was of some help.