It has been around for a long time. One of the guys in our club has been flying one for a few years.
It has weight listed as 7 to 8.5 pounds.
The Blue Nose has weight listed as 9.5 to 11 pounds
You could go with the 95AX
http://www3.omnimodels.com/cgi-bin/w...I=OSMG0580&P=0
I do not know about muffler fit in the cowl. Mustangs are fairly skinny. Look at page 42 of the manual
http://www.hangar-9.com/ProdInfo/Fil...375-manual.pdf and see how the cowl hugs the Saito four stroke they used.
Carrell