Easy-Peasy Alternator conversion
Lets start with the alternator source. In the US, MGCARS is ideal as they have all the bits ready to go.
Which is currently $79.95, when you call, ask for a single groove pulley to be installed instead of the 5 groove. Should be no or low charge. Have them leave it loose on the shaft as you need to rotate the front of the case 90-degrees.
Get a PLIS plug while you are on the phone.
There are 3 leads on the plug, fit a terminal lug to the large brown lead. Fit a spade (f) to brown/yellow lead. Clip off and insulate third lead (which will be folded back into the harness later.)
Enjoy 85 amps!
Alternator - salvage yard link above as well as any respectable auto parts store.
Pulley - local alternator specialty shop
PLIF plug - same (also called PLIS)
Brown #10 wire - Britshwiring.com or local hardware. I really like the
excellent quality of the Britishwiring.com wire.
this is an ADO16 type solenoid, mini is mounted on clutch housing or on starter.