just do over a say a year and budget yourself each month. Do a little bit every now and then and make sure you research! Then research more! I spent more than needed as i bought a lot of stuff i didnt need or i bought the wrong thing!
Its not a dream, you can do it if i can afford it! By the sounds of your previous cars, i guess your insurance shouldnt be a problem like mine is lol.
if you research it and talk to people that have done the conversion, then you can make a list of every part you will need and prices of it all. I did A LOT of research and i wish i had done more cause it wasnt enough!