personally i would spend the extra and get a isuzu box behind it as that will be my next mission as if you want to push it hard no landrover box will last!!!
as for pricing on this as offender90 said it can be cheap and effective (check out isuzurovers thread he done a very good job very informative and works great from what he has said and didnt cost to much) then theres such engine bays as rijidij's and as most will agree is an absolutely amazing build nothing spared but obviously would be ALOT more expensive...there is also alot of other very nice builds on here too just do a search and see what you can do yourself...
either way its going to cost a bit as my turbo just set me back $2300,mainfold was $380,oil line was $70,fittings were priceless :angel:,intercooler wasnt really dear but then again its probably not as good as a dear one either $200,3" exhaust tubing was around $100 i made my own mandrel bent exhaust,guages came to $400 (best money ever spent) if i was to do it again i would buy a MADMAN ems digital monitor but oh well...the rest is just time,good mates and contacts...

