I installed the cap, rotor and plug wires this morning and there were no big surprises. Just have to have an assortment of Allen keys handy. And you were right about that bottom bolt maheath, it was slow going as I loosened it the old fashioned way...a half turn at a time. The new one went in quickly though. It started up nicely the first time although I haven't had time for a road test yet. Thanks to all who responded.
1967 Jaguar E-type Series I, 2+2