I have a few of things on Seattle Craigslist that would help jumpstart your van build.
MAT66 ProBlack 80 mil Car Sound Deadening Mat 21 Sq ft - $25
Leftover bits from a Jeep project where it worked great.
A bunch of Ryobi tools - $600
Nothing wrong with any of these, I joined a workshop with...
I bought some van conversion items early, as I was worried that they might be hard to get (and/or more expensive) when my van arrived. The problem is that my Transit orders were both cancelled by Ford (for 2021 and 2022 MY), so I no longer need these items.
$300 [plus shipping] for everything...