I'd contact Brent Lykins. His motors reputation precedes him and and he uses name brand parts and not Taiwan or China knockoffs.
Although this is one of lowest priced motors from his site, it is complete and looks to only need a flywheel, trans, bellhousing to be a true drop-in by you.
He also sells those items. (saves you from doing run-out placement of the bellhousing).
Lykins Motorsports, LLC
Lykins Motorsports 351W Cobra Special
*Fully machined production 351W block
*ARP main bolts
*Clevite main/rod bearings
*Comp Cams hydraulic roller camshaft
*Scat crankshaft
*Ford Racing timing set
*Ford Racing fuel pump eccentric
*ARP cam retainer bolts
*ARP camshaft bolt
*Scat forged I-beam rods
*Probe forged pistons
*Total Seal rings
*New timing cover
*New timing pointer
*Professional Products harmonic balancer
*ARP balancer bolt
*Stock replacement water pump
*Felpro gasket set
*Edelbrock Performer RPM/RHS cylinder heads
*Ford Racing hydraulic roller lifters
*Comp Cams lifter spider
*Trend pushrods
*Comp Cams rocker arms
*Edelbrock Performer RPM intake
*Melling
oil pump/
oil pump drive
*ARP
oil pump/pickup bolts
*T-sump oil pan/pickup/dipstick
*MSD distributor with polymer gear
*Distributor clamp
*Carter mechanical fuel pump
*Ford Racing valve covers, valve cover breather
*Autolite spark plugs
*MSD plug wires
*PCV valve/hose
*Holley 4bbl carb
*Low profile air cleaner
*March aluminum pulleys and alternator bracket, accessory belt
*Water neck/thermostat
*100A 1-wire alternator
*Stainless steel exterior bolt kit
*Braided stainless steel fuel pump hose with AN fittings
*RAM pilot bearing
*Powermaster gear drive starter
*Rotating assembly balanced
*Fully assembled
*Wix oil filter
*Dyno tested
*Build sheet with all specs
*Build pictures
*Dyno results and dyno video provided!
$8699