Fitting oil temparature sensor?

I would like to fit an oil temperature sensor to my car to test a few experiments. One option was to replace the sump plug with a temperature sensor however I'm having difficulties finding one to fit.

no need to worry about fitting instructions I can do all that but do any of you know where I can buy a temperature sensor and gauge that will fit a ford fiesta 2007 model 1.25 Duratec engine (UK model so it will be a hatchback). If any more information is needed I will be happy to provide but I think they use the same size plugs throughout.

I'm happy to pay for shipping from America or any other country but if they do not produce such things just let me know and I will look at other alternatives.

How to remove the stereo from my pre face lift Ford Fiesta mk6 Zetec s?

I can't figure out anywhere how to remove my pre face lift ford fiesta's standard stereo (I don't know what model it is either so that would be great if someone can tell me)
Also (I'll also ask a different question about this but feel free to answer it here, how do I fit a new stereo, one that has AUX, And what's your recommendations? I can't find any nice ones apart from this pioneer one that costs like £170 and involves me cutting my dash

Can you change a tape cassette player in your car to a CD player of your choice?

Can you change a tape cassette player in your car to a CD player of your choice? - 1

Added (1). I'm learning to drive a car and I have been browsing on the internet for any cars to buy so that I had one waiting for me once I pass. I ended up buying a Ford Fiesta 2002 from a family friend for £500. It's only done 9,000 miles so I had to take it. Anyway because of this car being so old it has a tape deck/cassette player rather than a CD player. I was wondering if you can change it so I can listen to CD's or connect my phone to listen to music?

Best car for under $10,000?

I'm looking for a car under 10 grand give or take 1k. I would like it to acceleration quickly (preferable under 7 seconds 0-60). Here is a list of examples, but I want some more ideas. Keep in mind not all of these are in my budget, and I also want at least 10mpg and a car that isn't a fortune to repair. My job is currently minimum wage at 8.50 an hour, but I have to 10k in cash for the car.

heres the list.

Cadillac CTS v
05 Mustang V8
2006 Charger srt8
2007 Volkswagen GTI 2.0T
2007 Mini Cooper S
2007 Honda Civic Si
Ford Fiesta ST
2008 Audi A4
2006 Audi S4

I also want a car that looks modern, like the ones i have listed.

Added (1). All cars would be purchased used.

Should I ask for new car to be delivered on trailer / truck?

I have bought a new ford fiesta from a company and they are saying that it will be driven to my house for free from the dealer. This means that it will have to be driven about 250 miles to my house. I have enquired about getting it transported but they keep saying that its 'driven delivery'.

I'm worried that as it is a new car and the manual says about driving slowly for the first few hundred miles will a long motorway drive do any harm to it. If it is transported then there are plenty of slower roads that I can use to avoid our local motorway whilst it is within the breaking in period. I'm also concerned about how it will be driven on the way down. Am I just being stupid or are these reasonable concerns.

The only other option they have given me is for me to collect it from them in Manchester but this would mean travelling up north by plane which costs about £60 without other costs for getting to and from the airports included. Also I work shifts so would have to swap around shifts in order to get there.

Should I insist on getting it transported down to my house or accept driven delivery?