(It's the only ac the US have bought and developed (AV8B) apart from the Canberra (U2), from another country, which says a lot)
I thought that in the 60's the US helped fund the peg!
As a designer the SHAR is a great airframe not too much plastic, bring back good old metal fuselages, although saying that the Har GR7/9 is a much more advanced fuselage then the SHAR .