a 16" occ chopper fork would look good on there !
yer being at the bottom of the world has its limits,there are a few 60's schwinns around but command a really high price,there are heaps of 50's-70's english/euro bikes from when immagrants came over and brought their bikes and alot go for $1 reserve auctions BUT I live at the top of the north island and most of the bikes are at the bottom of the island or in the south island,freight is around $80 min and $130 from s/island so you can see my $1 dollar bike becomes crazy dollars,there is a company here that imports and restores mainly u.s bikes but price tags are around $1400 retailtoo bad you don't live here sometimes the swap meets are a good place to find what you need & not always super high prices
I like the sprocket idea,I have seen it done,think I will go with that idea,may redo the original seat (not the one on it now) as it bolted to the sissy barLove these type of builds, cool little bike out of next to nothing, budget
building with what ya got that's cool. I have mounted a head light on
those brake mounts, on one of my lowriders I fitted a cut up front
sprocket across the mounts not for practical reasons just for looks.
A number plate with his name on it would be cool.
yer its from a high end shimano cassette so already super hardened steel plus my blowtorch heating as you say would do it more,I have a torch that fits in the center of the cog just right so may put it inSome sprockets are pretty hard anyway, but you say it had been previously heated, it may have been made even harder, not surprised you went through so many cheap drill bits!
Looks good!
Luke.