Engine with new AMC heads, 1.25 ratio rockers, 3-angle valve grind, new
pistons/cylinders, new oil pump, new lifters, and machined/rebuilt rods,
crank (polished), cam and flywheel was $2500.  Installation cost my a
day of DIYing it.  Be prepared to spend about 10-20% more for all the
broken/worn out stuff you will want to replace when the engine is out.
I.e.,  water pump, thermostat, clutch, exhaust, hoses, etc.
--
Stuart MacMillan
Seattle

'84 Vanagon Westfalia w/2.1
'65 MGB (Driven since 1969)
'74 MGB GT (Restoring)

Assisting on Restoration:
'72 MGB GT (Daughter's)
'64 MGB (Son's)

Parts cars:
'68 & '73 MGB, '67 MGB GT