I'd like to add my info if it can help.
I went down this road last year after the coolant loss in the V8 reached about 0.5 ltr every 300K.
Got 3 quotes from LR specialists (one was a dealership) they were $1600, $1750 and $2800. This is a base cost and did not include any liner replacements, cam work etc etc.
I chose the $1750 for many reasons but also the $88 pre-work inspection fee is waived if the job goes ahead.
The job inclued an engine block pressure check and the heads examined and cleaned (not refurbished). In my case block and heads all checked out ok.
Good luck

