(Manton) To quote Victor Frankenstein (pronounced FRAHNK-un-steen), "It ... could ... work." Solid tie only, I think. One or the other (shirt or suit) stripe should be really faint and subtle. They should definitely be different scales. I haven't tried this, admittedly, so it may be a disaster in waiting ...
I have a great deal more experience with horizontally striped shirts than anyone should ever be subjected to ... nonetheless, Manton is correct. Some subtle striped suits work well with horizontal shirts. I have even seen instances where a boldly striped suit can work with a Gekko shirt. What I have concluded, though, is that it is simply a matter of trial and error. In other words, your taste is on trial and it is altogether too easy to make an error. Each combination needs to be judged on its own merits. Does it feel
like they match? Is it pleasing to the eye? If you don't have an overabundance of confidence in your ability to "feel" a match ... or if your self-esteem isn't at an all time high, by all means go with the horizontal shirt but stay with a solid color suit. If you want the best available lesson in the wear and feeling of horizontally striped shirts, rent Wall Street
for a night.