why not just buy one off the peg? Burtons, M&S,Next

I would totally buy a suit from Charles Tyrwhitt and spend a bit of money getting it tailored (inch cuff showing on the sleeve for example).

I do agree about girls spending loads on a dress for one day which is why I'll rent and my other half will spend quite a bit on a tailored suit he can where again and again!

I was skint when I got married. Went to Reiss got a whistle for £400 and had the strides tapered to a pair of jeans that fitted me blinding.
Needed a black suit for a funeral and a ball last year, got one from blue water for less than £200. Treat it like a kitchen, don't spend a lot on the carcasses (jacket)and doors(strides), go up market on the handles(tapering) ,fridge (tie)and worktops (shoes). I think.

Check out this Web site, my mate got his wedding suit from there and loved it. You can design your own suit

[Link]

I ride a GS scooter with my hair cut neat
I wear my war time coat in the wind and sleet.

House of Fraser Clearance Sale
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I have got suits when passing through Asia, but there is a company which is based in Hong Kong but has people who design you a suit here and then get it made in Asia.

[Link]

They do tours and come to London quite often. Have a clear idea of what you want, an appointment doesn't cost anything and you can get one made for around £300 if I remember right.