Ah, sounds like a bloody good reason to me! I'd advise getting the MC21 frame, as access to the carbs is so much easier. Dunno about weights, but I'd guess it's a better frame for mounting later suspension too. Only a guess mind...
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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball