i guess it depends on how much tooling you have. most of the time people who dont have alot of tooling frankenstein parts and pieces together from the original. brazing or welding parts and sections together. sometimes you can flip over an old shifter and use that. sometimes you can use an old shifter by, fabricating an axle to go where the shifter rod came through, and then mounting that to a plate in front of your peg. or you can cut the hole off, and bolt directly though the shifter. sometimes they have to be shortened up. you can use the same plate to mount the peg too. my opinion is rearsets are something you buy just because they can be a pain in the ass to fabricate if you dont have alot of spare parts kicking around or the tooling to do it well. some older bikes lend themselves to converting better than others. if you can find some 305 superhawk pegs, they are primo for a conversion. there are also various kinds of cable conversions you can do too. the superhawk rear brake is cable operated already.
if you decide to buy something, the tarrozis are cheap (i think about or under 200) and you make your own linkages. in other words, they come with the pegs and levers, just no rods or cables. so you get to make some parts, but the hard work is done. you can use all thread or rod and thread it yourself. try www.mcmaster.com for misc parts and pieces. you'll need to give them a business name before they'll ship to you but just make one up. or have it shipped to work. they dont care. as long as you pay em right off. they have tons of linkages and those little ball joint ends, i cant remember what theyre really called.
good luck
jc
if you decide to buy something, the tarrozis are cheap (i think about or under 200) and you make your own linkages. in other words, they come with the pegs and levers, just no rods or cables. so you get to make some parts, but the hard work is done. you can use all thread or rod and thread it yourself. try www.mcmaster.com for misc parts and pieces. you'll need to give them a business name before they'll ship to you but just make one up. or have it shipped to work. they dont care. as long as you pay em right off. they have tons of linkages and those little ball joint ends, i cant remember what theyre really called.
good luck
jc