I really like this build. My dad still has his blaster he bought new in 88. Kinda the same situation. Original factory plastics with the how to operate stickers. Over the years we have built that motor pretty good and the people that know it now respect blasters because of it. Only thing we haven't done to it was get porting. I could only imagine how mean it would be if we did.
I recently bought my own 2 blaster projects. I respect the original 88 but had to have my own 03+ blaster. But I like the idea of keeping the power a secret. That's kinda the plan I got with current build. I'm going with the +3 crank and 240 bb. It was all given to me for $200 including the 2 blasters. It's a sleeved stock cylinder so no one can tell it's got a +3 or a 240 bore unless they pop off the head. So the plan is to stomp some 400s at local fair races and stuff. They will never see it coming lol. But if they are smart they will see the vitos pipe, bigger carb, and different aorbox (but I'm thinking I'm gonna try and paint the aorbox to match the original color)