There's actually an ECR 4.6 project from around 2002 for sale on eBay right now with 180k miles for $29k. It's from back in the day, but there are some pics of the work orders in there. I wish there was an overall project total, but I didn't see one - I think I counted around $36k in work though from the receipts. Kind of funny how the sliders now only say ROX on them instead of ECR/ROX.
Mind you, this was from 2002, so labor rates, etc. have gone up significantly. Not sure if the labor times have decreased as they've scaled or not...would be interesting to see the same project of another truck with this paperwork to compare.
1994 Defender 90 ST Alpine White D90 # 851 VIN: SALDV2281RA939952
LRFAQ: Badger Top, new 4.6 and R380 installed in 2006. 115k miles 2006