I think you are talking about a very early set of plans for a twin engine ugly stick.
I based one of those without the instructions and loved it.
Yes, I also eventually put the third engine on the nose.
Good idea to lengthen the wing. With that thick wing, the flaps really will not be necessay.
If you want better control, enlarge the rudder and use pull pull system.
Is this a tricycle or two front gear arrangement for landing gear?
You will hear a chopping sound due to the overlapping propellors, but don't worry about it.
Good Luck,
And send pictures....before the first flight!!!
Twinman