I'd rather focus on not falling off. Should it happen then insurance will cover it.
I''m with you. When i got my motard, i was thinking about pulling my rear pegs, but my coworker was all,"its extra protection in a crash." he was right, it saved me at least $1000 after i laid her down. My brand new SSS is financed, so i have to have full coverage, so, she looks a lot better with no pegs and the new rage tail tidy.
About the plugs, wish i knew what size, but he just pulled them out of a drawer. Guy at the parts store said, dont ruin those, and if they dont fit, i can take them back. Those guys in the store are cool, ive walked out of there at least five times with the,"come back and pay for it later" because i only wanted like $4 worth of stuff. I always pay, eventually, and that treatment is why i go back.