From 1967 to 1969 Harley used two frames. The straight leg for the XLCH and the offset to accommodate the larger battery used on the XLH. Starting in 1970 only one frame was used.
I wouldn't waste my time and money trying to make something others already have. If you are comfortable with the way it is set up, get it running and spend your time & $ where it counts: riding a fun bike!
'56 KHK '60 XLCH '48 Chief '42 Indian 841 '64 BMW R69S '84 Moto Guzzi V65Sp
When I got my 56 KHK in 91 it was with the intention of putting the engine in a Rickman type frame. Got harder to do the more it was ridden as it just felt right. Well 28 years later the engine has never left as the bike is so comfortable, also handles very well with the Metzelers.
Simon wrote:They look like OEM shocks to me...(racing)
Yes, they seem to be OEM shocks with aluminum spacers (like the racing type), but if you look at the top of the shocks, you see that instead of a spring retaining plate they use the bottom cam support plate also on the top.