Degrease the old one and the bay from above and below and give it a good bath.
Speed tip : I found it is faster to pull cap off dizzy, rotor out, then pull the two wires off the module, rubber bung out watching the gasket if still there and peel away from engine to coil. faster than fiddling at coil drop the little washers or nuts or mix up wiring.
Do not need to remove starter just the long bolt at top
A cheapy heat gun is good on rubber water hoses to soften their grip on their mating pipes. Fuel hoses are an interesting thing with heat guns - do not do, mine gave off white smoke - I took as a warning and stopped
Little trolley jack under gearbox to support or use a bar across the strut tops, I use threaded rod through its middle of bar, nut and washer below holding a chain that hooks on front centre bolt of gearbox housing, another nut at top to wind up and down to suit box angle.
Buy a cheapy plastic dummy shaft to align clutch splines on refit - helps