Why this obsession with plugging your 'Date Timestamp Camera with Geotagging'' app here?
What use does it have for Pentax users?

Working that way round can cause shadowing issues using the onboard camera flash at wider angles.

Do I take it you still have the original focussing screen and just want a replacement clip to hold it in?
Given there might be small shards of glass from the broken screen in the camera it might be worth considering getting a quote to have it cleaned and the screen and clip replaced.
As I haven't got a clue as to where you are it's difficult to suggest any potential repairers or specific sources of spare parts, though sometimes people sell spares from dismantled cameras on eBay which might help if you're considering a do it yourself repair. Or source a broken K10D to use for donor parts.
There's one going quite cheap here:
https://www.ebay.co.uk/itm/pentax-k10d-Camera/254215951209?epid=100242537&hash=i...
(That's said to be a working camera.)
You ask if the clip can be repaired - doubt anyone could judge without seeing it!

Don't forget the person asking is from Georgia!

Super shots. I'm sure they're far better than if you'd bought that other lens you were thinking of.

Isn't that what you wanted? You can get an M series 135mm to go with it for not a lot of money.

'Life on Earth' is the title of a well known TV series and understandably the subject of concern to many so hopefully this theme will inspire some wonderful photographs for this week's competition which is now up and running. You will find it here.
Please use this thread for any discussion about the competition.

The inspiration of the landscape and new camera seem to have worked wonders. Great!

Which cells are you using? Some of the older cells used mercury which is now banned due to environmental issues and many of the current equivalent alkaline LR44 or AG13 simply aren't as efficient. Try sourcing some better batteries for it (eg silver oxide versions.)

Basically you can't get a digital preview in the viewfinder or an optical preview on the liveview screen.
Using the optical preview allows you to look trough the viewfinder and see the effect of stopping the lens down. In liveview the mirror is up so the only useful option is to use digital preview because you can't see anything through the viewfinder.
You can program the raw button to quickly switch between the two modes with just a single button press.

Hi JA, pleased things are moving on and that it seems you'll be back with a working camera very soon.
What a time for your camera to die though. I can imagine how I'd feel if I'd just arrived in Canada and it happened to me.
Trust you'll be able to really start enjoying your visit to Blighty after your trip to Exeter.