Feminist wedding - issues I'd think about:
Whether I need one at all (many of the legal issues can be sorted by other means - e.g. drawing up wills, mortgage as tenants in common etc. Some can't - for instance if you live in the SE and own a house, chances are the surviving partner would end up paying death duty on the house in the event of the other dying, unless you were married).
Personally, giving away the bride would be a no-no for me.
Wouldn't change my name (again, that's a personal one).
Would subvert the "no mothers' names" nonsense by getting them as witnesses.
No bloody bouquet throwing.
Speeches (if you really must have them) allocated fairly, not all blokes talking!
Children's entertainer, because we all know that however different we might want the world to be, childcare falls disproportionately on women, so if you want your female friends and relatives to be able to relax, think about how to make the do fun for their children.
Elope and have a couple of passers-by as witnesses.
Anti-capitalist
Elope and have a couple of passers-by as witnesses.
If you do want a big party, hold it in a community hall and ask friends who live locally if they'd be prepared to do a pot-luck lunch in place of giving you a gift - or (if, even better, you had a no gift rule) ask them if they'd bring a dish in exchange for you making a donation to the charity of their choice.
No gifts and/or donations to charity.
Hold the party somewhere sensible, i.e. somewhere that guests can get to by public transport, not out in the country in the middle of nowhere where anyone without cars will have to spring 50 quid each way for a taxi (can you tell I've been stung this way in the past?)
What is neither of the above (as people up thread have pointed out) is expecting to put on a big traditional do on the cheap by exploiting other people's unpaid labour. That is almost by definition the epitome of capitalism and anti-feminism.