[Dangerous Doug]

Joe Wicked: I have a spreadsheet that I set up for determining the cost of an ERA in a "phased-build" approach, which is they way I'm getting/building my car. PM me with an email address and I'll send it to you.

The spreadsheet lets you select which options you want in a time-phased build. It does some error checking (so you don't check the same option twice) and sums up the project cost in total, and in phases. It's worked well for me.

Seems to me I saw an unfinished ERA for sale here on CC recently. You might do a quick search for that.

DD