The discussion about batteries has only arisen out of our attempts to ascertain exactly what your power requirements are.For anyone confused with battery technology, please Google them.
It is, and I think it was made fairly clear early on that it is not a very advisable approach, at least for someone who does not have the appropriate experience and knowledge. As was also suggested early on, some sort of switched mode power supply (along the lines of a computer PSU) would probably be more appropriate for your purpose (and much cheaper) than a 50Hz transformer-based 1000W power supply. If you Googled for them, I'm sure you would find something. If 12V were enough (which I assume it isn't), there are countless ATX power supplies around which cost next-to-nothing which provide 30-40A at 12V. Some have dual or triple 12V supplies but, unfortunately, I doubt that it would be possible to combine them to get higher voltage.This thread is about winding transformers.
Kind Regards, John
1/ See #1
2/ I also wouldn't advice anyone without the appropriate experience and knowlege to attemp to wind a mains powered transformer. Experience and knowledge can be gained.
3/ Correct 12V is not enough.
C.