Anthony,
I am sure you will hear from others on this, but our inquiring minds want to know, what are your intentions with the car? You dont mention a budget or the current condition of your 35, but getting 160 to 180 HP out of a flathead is going to get expensive, probably very expensive. The 59 was originally 95HP. Plus with that kind of oomph, you will need to consider going to hydraulic brakes, possibly discs, transmission and rear end/ gears.
Take a poke around this site and the HAMB, you will find a TON of info on this topic. I am currently looking for a stock motor for my 40, I have good cores, but I am looking at 3K+ potentially for a stock rebuild...
Regards,
Chris