There hasn't much good MF gear listed on Ebay here in Australia of late. Asking prices are high. It may be that many sellers may have got sick of cheapskate or dishonest buyers or the amount of good equipment available to sell may be less. On the other hand, the amount of tat being offered at high prices is, to me, astounding.
A few bits of advice learned from almost ten years of Ebay selling.
The good gear I would break up and sell as separate items. The cheaper bits I would sell as kits or bundles. Or do the opposite. Your choice. Either worked for me in the past. Of course it all depends on what you have as "good" and "cheaper" MF items.
If it's gear you want to be rid of, put a Buy It Now price on it and let it go. Plus 'P&P'. Remember to add 15% on your packing and postage costs to cover Ebay's grab.
If it's valuable gear (= camera/lens/finder/film back), list it for auction, starting with the price you would have asked as Buy It Now. Again, no Make An Offer.
Check prices before you list. Use the advanced facility and select Sold Items. Often the difference between the asking prices and the sale prices can be truly amazing.
Ignore the Make An Offer facility or you will be fighting off an entire legion of $5 cheapskates and time wasters. Every now and then you'll have to go back into your listing anyway and cancel the Make An Offer which the Ebay devils automatically put on, which really annoyed me almost to a point of irrational hatred for them.
List, then forget about it, just let it sit. Resist the impulse to check your listings four times every day. If you get a sale, Ebay will email you.
Eventually someone will buy. Somebody always does.Items not sold quickly can be relisted. Patience is the way to go.
If after say two months some items haven't sold, add $10 or even $20 to the listing. They will then go within a week of your doing this. Don't ask me why, I don't know why. Just trust me on this. It works.
You will get questions and queries. If they are intelligent, always answer politely. Delete the rest. Ignore the idiots. there are many of the latter, but happily as many of the former. After deleting the cheapskates, I always blocked them, for the satisfaction of it. You may or may not want to do this.
Don't overdescribe. List honestly. Don't overpraise the wonderfulness of your items or exaggerate their qualities. Such hyperbole ineviably comes back to haunt you.
I always ended my listings with "Sold as is, no returns." I'm unsure about the legality of this, but it worked for me, excepting one sad saga where someone had buyer's remorse and faked a complaint to get a refund, which Ebay/Paypal grabbed from my bank account.
The disclaimer now. I no longer sell anything on Ebay. They offer NO protection whatsoever to sellers and put all the aces in the buyer's hand, leaving you only the Joker card. After almost a decade of selling, a few dishonest buyers who I saw through and cancelled the sales, and two other major problems (one resolved in my favor, the other which went to the lying buyer, who at least had the decency to return the item and paying for the postage after I emailed Ebay to demand this), there came a time where I no longer wanted to be involved in the whole wearying business of Ebay selling. You will probably reach this point in due course.
We could all write endlessly about experiences, good or bad, with Ebay, but I will stop at this. May I wish you the very best of luck...