Keep your eye on the on line suppliers. When I did mine I was a little taken aback at the price of them. Mostly coz I’m tight
I looked on one of the sites late one night and couldn’t understand why their single swivels were £50 each and a full kit both sides was only £6.50
I ordered one in the belief an email would be rushed out to me telling me to sod off.
Unbelievably they turned up, even though the next day the typo had been corrected and they were back at full price.
It probably won’t happen again but I just like talking about it
