yeah i agree it looks sweet.
i would start off by giving it an oil change.
replace the spark plug,and fit an NGK cap to your original coil lead.
and i would check the fuel system out.
drain the tank and check for dirt etc,
loosen the carby clamps, spin it around and drop the fuel bowl off too.
and fit a new air filter.
then i'd be removing the expansion chamber and silencer.
inside the header pipe of the expansion chamber where the pipe meets the flange, there may be excess weld built up.
a quick deburr with a die grinder, and carbide tip will make short work of removing it.
then you are ready to burn the carbon/oil out of them, it will take a while to get it going, and it will be very smoky,but is definately worth it.
the silencer is a bit easier,
degrease it, repack it and the paint the whole exhaust up using VHT High Temp paint.
fit a brand new seal while you are reassembling it all.
if you want the paint to last a long time,
have the pipes lightly sandblasted or beadblasted first, the paint wont let go as easy.
are you going to get lights for it ?
did they come with it ?
