Here are photos of the extension tubes:

K mount - I will post photos shortly.

Here are some photos of the adapters and cable:












Set up on the camera with flashes:






Now the battery (one left):

That's sold, thanks John for the pleasant transaction.

I have this small flash for sale, it is in excellent condition with no visible marks. It is designed for those camera bodies without built-in flash and is actually much more versatile; it is compact and very light with two AAA batteries so can be kept in your bag the whole time. It comes as supplied with the box, manual and soft bag plus I have a spare foot (don't know why) which I will include as well. I am asking £75.00 plus postage within the UK or any sensible offer.

Pentax hot shoe adapter type F including caps, £25.00 + £3.49 postage. Two available.
Pentax extension cord type F with original box, £60.00 + £3.49 postage.
Macro extension tube set, metal bodies & plastic mounts. 13mm, 21mm, 31mm including end caps. As new, hardly used. £25.00 + £3.49 postage.
Pentax brand rechargeable battery D-L190. Used so I cannot guarantee the charge life. £20.00 inc. postage. I have two available but can only post singly due to post office rules.

This angle bracket from Kirk Enterprises is probably the best available, it is well engineering in the US and is tailor-made for each individual camera design, so fits snugly like a glove. An anti-twist lug fits into a slot in the base of the camera intended for the battery grip so there is no movement even with a heavy lens on, and ensures there is no rubbing of the camera body. It matches the camera finish and the svelte design means it doesn't need to be removed. Current price in the US is $145 although out of stock. I am asking £75.00 including postage within the UK.
Specification:
Anti-twist pins: Yes
Finish: Black Anodize
Material: 6061-T6 aluminum
Additional Mounting Hole: (1) 1/4-20
Hand Strap Loop: Yes
Sensor Centering Lines: Yes
QD System: Yes, Material: Stainless Steel (Industry Standard Quick Disconnect System)
Mounting Screw: Captive 1/4-20 stainless
Full port door access: Yes

Up for sale at last is my ring flash bought from SRS Microsystems a while ago. It is in excellent condition and all complete with no visible defects. These are as rare as hen's teeth and even more so in this condition, unless sold on here soon I will post it on eBay with a price uplift to reflect their fee. I am asking £300.00 plus postage to UK only; here are some photos:

Thanks John, I will put mine in a separate post but it will go right onto eBay with a price to offset their fee unless someone here gets in touch very soon.

Have you sold it yet? I am only asking because I have finally decided to sell mine if I get the right offer and would be interested to hear if you got a good price, and there is no point posting here if yours is unsold.