To be honest, I've thought about this for quite some time. By some time, I don't mean hours or days, I mean years.
In terms of unattractiveness, I have no limit. I find beauty in all sizes, but to me, especially the larger ones.
However, in terms of ability, I believe my limit would be, if I were to be lucky enough to find such a person, between 500 and 600. I enjoy the idea of coming home from work and laying with my Significant Other and just relaxing, playing games, watching movies, or doing random hobbies.
As for helping them do various tasks, that is also one of the things that makes me happy.
In terms of money, I am aware of this as well. However, I feel that this may not be a problem as much as it may seem so in the future. I have no intention of bragging about this, by the way. It is rather that I believe I am able to work hard enough to achieve and manage it over the course of time.
I am aware that it also may not seem like I know what I'm talking about/getting myself into, but I actually was in a relationship in which my partner had at least a small inkling of these things/issues. Which is why I say what I am saying.
I also have other reasons as to why I would prefer this, but those reasons are more reserved to be known to the people I keep closest to me.
5 years