Well i've budgeted it as follows:
£95 ($180) for the 1JZ Mounts (from BIC Performance)
£1300 ($2470) for Engine, Loom & Box (at Driftmotion Price, dunno about other places)
£200 ($380) for the clutch & any related parts (OEM JZA70)
£250 ($475) for the driveshaft
£150 ($285) for the Gaskets (OEM JZA70's)
On top of that, i have an extra £1750 ($3325) buffer for shipping and sundry items, like hoses etc. as well as any tuning parts, but if i use it all, my overdraft will be maxed!
For some stuff i'm probably over estimating, but its better to overestimate and have money left over, than get caught short.