That tailstock is actually a sensitive drilling attachment. Probably worth around £100. And the cross-slide is probably worth £150 - £200 alone.
I find that most 8mm collets are interchangeable. You'll have to suck it and see. Don't bother buying them here or there: just get yourself a decent looking set. If you are planning on making clock parts or tool parts then consider getting some larger sizes too (5mm+).
Hi Duncan, welcome aboard.
I love the wooden frame that you have made for driving the turns an rather stylish piece of micro turning. You are obviously a craftsman with stylish artistic flair, and I look forward to seeing more of your endeavours in the future.
Hi, welcome and all good wishes. I gave all that gear away years ago that was left to me as I will not get into that depth of work !. Nice bit of turning. If I cannot obtain an essential spare part the job does not get done. Best regards, Mike the Jobber.