You should not need a piggy back if you are only going to swap in "what I guess" is an integrated ready-to-run distributor. Bypassing the resistor should make your original coil + wire give you the power you want
Whatever you do you want IGN1 and IGN2 to come together, as IGN1 (run) goes dead during cranking via the key. IGN2 is the original (usually brown) resistor bypass wire. Doing the change as you said (bypass resistor) will give you want you need there
HOWEVER make sure you check that terminal point and compare to battery voltage to make sure it does not suffer harness wiring drop
So far as the Denso "I don't know" you should do some research. The older Delcos for example, required either a warning lamp / resistor circuit OR a series diode in the excite lead to protect the diode trio
Also make certain your Denso is actually internally regulated.