Honestly guys&gals dig out your mig29V1 plans
Blow them up 141% (A4 to A3)
Rejig the plans to give the +5mm tow in on the vertical stabs and under body to match
Grab some 10mm foam and 5-6mm
Strap whatever motor on it thatll do the job (iam @ 1-1.2 kg thrust) and go flying
Put 5 batteries through it yesterday real stable real fun
Cost bugger all[ATTACH=full]55165[/ATTACH]
For handling and speed you can`t beat a profile plane for fun.
The reason may be that you`re not too worried about pranging it as the build investment is pretty low.