If you're on a limited budget you really should re-evaluate your plans. My LS1 conversion was also over $30k. Alot of that was fluff, like stainless hardware, but with a 35+ year old car you're gonna find lots of stuff that needs rebuilding or replacing, especially if you intend to power it with over 300hp. Not to be self serving, but have you considered buying a 'completed' one (like mine) that can be had for a lesser expense?