I will sell you my 1/3 BUSA Pup kit, with aluminum cowl and Dubro wheels for $250. Go Big. I have an extra as I found a partially built one I'm rehabing.

As to your slight stab tilt. think back to Free Flight days and which way will it roll on take-off? I was taught look from behind the airplane.the airplane will want to roll to make the stab level. Thus with your SE-5A, georgous by the way, you should expect a slight roll to starboard as elevator rolls to level flight. Judging by small amount if your port stab lower, this is easily trimmed out with ailerons, but that is also speed dependent. Since you stated plane rolled left, you have a twist somewhere overpowering the stab effect.

You are doing what is needed, the rigging drill as so many have advised. We all want to see this baby fly!!

One last thought from Lou Proctor: if the plane flies "unmanageable" and all the wings are straight, try 2 degrees of down thrust. This made his N-28 a total ***** cat and blast to fly per 1984 review article.