IMO, you're going about it wrong....... or rather, you're focusing on the parts, and an arbitrary hp number instead of the application.

Figure out the things that are the highest priority for the finished product(like a 6bbl that fits under the stock hood), what gears, converter, etc you'd like to use in the car....... then build the motor around those things that are a "given"......... and it will just make what it makes.

Unless it's a race car that requires a certain amount of power to be competitive in a particular class, or to reach a performance target....... then it's just a number.
For street cars, I find it makes more sense to build the motor so that it works well how it's being used "most" of the time......... and if that means you give up 20, 30, 50hp of peak power...... it's not really a big deal.
Basically, for a given engine size, the TQ won't really change that much even if the top end HP is down 25-50HP........besides.........mostly what you feel in the seat of your pants when driving around on the road, is the TQ.