That looks nice Frank,will you be building a pipe for it ? I like the look of the 76-78' center-port XL head.
The XL350 you built looks like a 'Flat Track' replica,you really shortened the orig. rear fender/frame 'hoop'.
I want to keep mine close to the stock 'look' w/ stock tank and sidecovers,carb.(including the stock crankshaft w/ 71mm stroke);mods. will include a nice street 'low pipe' w/ quiet baffle,a 19" front disc brake spoke wheel,a low front fender,fork brace,big bore piston,etc.
I like to dream into the future on this build

.I already found one that i would love to purchase out West but won't be able to w/ that one...

I'll start looking for one after I move out-of-state this yr. and get settled-in.
What type of mods. have you done to the inside of the engine on your bike ?