I’m of the opinion most bike things go for 20-25% more on eBay than in the classifieds here usually so you are still making a ‘profit’. Sold plenty of stuff that’s gone for more than you can buy it new in CRC for instance.
You get an almost guaranteed sale after 7 days. Very few tyrekickers who just want loads of photos/details then to say it’s too much, or they need to sell their kit first to afford it.
If i were you I’d sell on here and advertise at a reasonable price to start with.
And then get haggled down. So the £150 advert sells for, say £130. Still £20 less than eBay including the fees…