Topclimber kit for sale on Gumtree. I've never tried these but some people like them. This is good value!https://www.gumtree.com.au/s-ad/mornington/sail-boats/yacht-mast-climbing-equipment-top-climber-/1200952194
There are Youtube videos.
SOLD.
Same thing happened to the little NS16 I was looking at on Gumtree. I posted it here for comments and it sold before I could get a look at it.
Had one, not my cup of tea, sold it to the first bidder.
Gave a fella a hand to climb his mast today, well honestly all I had to do was tail out his safety while he clambered up and down his folding steps, a nice solution. No good on a gaff tho, best part was I stayed on the deck 
