Very doubtful if you'll find a site for 400t. Its dependable, reliable not too slow, (around 100mph, but keep it revving) and pretty boring really (you meet the nicest people on a Honda) Balance shaft chain usually needs adjusting which may require clutch cover removal, but its not difficult. Keep it oiled and filtered and it looks like it will run forever. ( still had 100,000 mile design life in 79) Has piston slide carbs so you dont need to worry about diaphrams goind bd (they may need polishing if its been sitting too long) Generator will have been changed if it was one of the early faulty ones. Other than that, you cant get much better basic transport.
PJ