Starting DIY with BT928 or other cheap AMP

As in the title - I want to start DIY as a hobby. I think it will be easier to modify something than build from scratch. What will I need and how much will it cost? I know the basic tools I will need to get in order to start but I would like someone to list all the things that will be needed. So far my knowledge in DIY section is very lmited and I base only on some tips and tutorials that I have found on youtube and here. However, those tutorials assume that I have some general knowledge already and I just do not know if .e.g. there are some tools that I might need and I have never heard of. This is why I need a simple list of all tools and accessories - soldering iron, sponge; what else?

I think I will buy all tools from amazon.co.uk as this will be quite 'comfortable' and I will not need to search a lot to find something. Having said what is the 'place' where I am going to buy from I would also like you to suggest how much it will cost me to buy everything I need. Now I know that it might be quite rude, but as I said - I  do not know a lot and so far the more I read the more confused I am. I think this is the biggest problem - each time I read another 'article' or thread about DIY authors of texts/posts come out with something completely new or 'exotic'. This kind of confuses me. And it is another reason why a list of tools wouldbe probably the best way for me to start.

There is another thing - the product I am going to work on. From what I read so far I think BT928 will be the right place to start. It does not cost a lot so I will not worry if I destroy the unit completely. On the other hand one of my friends told me that he has some old Creek OBH-11 for sale. He wanted for it about the same money thatI I would need to spend for BT928 - do you think Creek OBH-11 would be better? I know it would sound better straight out of the box, but would modding Creek be a better way to learn or it would have better effects (assuming that my DIY would be successful)?

So I think these are my all questions. There are quite a lot of things I need to learn but I thnk the best way to learn DIY is to actually start DIY.

PS: Are there any articles, threads, or videos that would help me? I am talking about pure advices on DIY and soldering not e.g. articles on what changes I should do exactly for the BT928 - I have found some very usefull suggestions on what to o with BT928 already.:D

Thank you a lot! I will read it tomorrow as I am going to bed now. For now it seems to be very useful for such a n00b like me.:D

OK. I have watched all of these tutorials from the tangentsoft.net and I think I will start to do some work.:D When I finish I will post some photos of modded BT928 to show you what I ave changed. Probably I will also ask for some advice as well. Thank you very much!

EDIT - Do you think that creating CMOY AMP will be easier or better to start with than modding BT928?

Basically BT928 costs only £25-£30 so it is very cheap. It has a plenty of 'free' space, which means it does not use many types of parts etc. I think this would be the right place to start as in the future I doubt I will create AMPs from scratch - I much rather do some modds on existing, fully working devices just to improve the sound quality. Also BT928 is very 'muddy' sounding DAC and it would be very easy to see any sound quality improvements. On the other hand - by creating small CMOY I will know better the way that those electronics work, but then again - do I really need to know this? In future I only plan to modify things not design/build from scratch...

For now I guess I will go with the BT928, but I will definitely need to spend some time on deciding what to start with. I would not be suprised at all if in the end I will end up with having gone through BT928 and CMOY.:E