with what I can glean from your posts, no. you should be just fine with something in the the 9.5 area.
realistically, probably the best build you could do would be a magnum 360 with a +1 cam, light head work and a dual plane manifold with 750ish carb. that would be *plenty* for what you are and would meet your criteria almost perfectly.
it wouldn't cost a fortune to build, parts are inexpensive and easily available, it'll run on pump gas all day long and produce decent power while being reliable.