The coat is pretty hard to find! Im not concerned about the color, it can be died dark brown but the cut and fabric style is pretty hard to track down. Damn those Triad bullet ballet coats! It would be perfect to dye the light gray one that color but they are 100 percent non existent now.
Also the vest ! A tall pinstripe vest.. do you know of any?
Also that two tone blue shirt is so specific it will be hard to replicate.
and as you alluded to, the tie... but im thinking Spirit Octopus is actually a decent option for the style alone... it can maybe be dyed dark red if not to go for the one that Ha Rue tried to replicate.
Of course the other look can be his look when he murders Don Ciceo, but the strange patter on his brown suit wuld be near impossible to replicate I actually think the New York look is easier.