I have a near new 16" SPAL electric puller fan. It's the thin-line series and measures 2.5" thick (at it's thickest point). I believe it flows 1300CFM. I bought it new for $85. it has been installed and run for maybe a minute. Still like new and working great. Will fit in an e30 in place of the mechanical one.
$50 + shipping.
$50 + shipping.