The truth is, if you go back over previous topics, veganbikes has insulted me again and again and again. How long should I resist the urge to become defensive? Go back and check. Please moderators, go back and check.
When a person is repeatedly being insulted, it might be smarter to quit the forum, than to provide more information people can use to insult you.
I repeat, this topic is a very good example of some people suggesting I can't know what I am talking about. I am taller than the majority of people on this forum. I have larger bones than the majority of people on this forum. I am fatter than a large proportion of people on this forum. If you had a body like mine, you could not use a small seat. I did not ask what size seat I need. I already know that. I said Can anyone recommend any very large seats? I am never going to suddenly agree that a small seat is good for me, because I know it isn't. Anyone who tells me I should, is not listening. They are not giving good advice.
I think the primary issue in some people's minds is, people are supposed to buy expensive brand name bikes, and upgrade them with expensive brand name parts. Anyone who uses inexpensive parts is not smart enough to know how to impress people. I know a lot of other people also look for inexpensive bikes, and inexpensive ways to repair them. I am not the only one. But those with the expensive bikes are the cool people, and I am not cool. The truth is, those who don't spend excessive amounts on things they can get less expensively balance their budget better, and are the smart ones. I know some people have more money than me, and can afford expensive things. There are also others involved in competition, or the type of cycling, where having a more expensive bike is beneficial. That is ok for them.
I'm not defending anyone else's posts here, just addressing how I've dealt with your posts.
I gave you some guff on the pole thread, not because I don't appreciate cheap solutions to problems, but because the stuff you rigged up really did look dangerously insecure. If you can ride it safely, more power to you, but when you post stuff, it's a natural assumption that you're advocating its use for other people, so I think that makes discussing its safety (or lack thereof) fair game.
I understand that you live and ride in a very different context than I do, with a body that is very different from mine, so I try not to use myself and my situation as some sort of norm to judge you by.
I have ridden was I was 300 plus pounds and 5'9", so I'm not questioning your assessment you need a big seat because I did (and no, I don't buy that "have to call it a saddle" nonsense, I use the words interchangeably). I am concerned here because the picture in your OP really looks like the thing would be unrideable.
I posted a link to a saddle I found comfortable at 300+ pounds, The link was kind of crappy, but it's available from Amazon at $20.08, which I think might be in your budget. It's the Avenir Gel Sprung Ergonomic Cycling Saddle. If you try googling it, maybe it's available where you live at some sort of reasonable price. I actually had it on my bike after I lost about 140 pounds, and rode a couple centuries on it (very slow ones, mind you), so I can vouch for it not causing major problems.