[Dragncar]

Option # 3, Instead of the High Port option run some of the new CNC chamber (same as High Port) Edelbrock heads with mild-medium port job.
First, your intake will not be raised up 3/4". Gives you more intake/spacer choices.
IMO the advantage High Ports have over good E heads is for a very narrow engine choice. More max effort deals.
Builds like you are planning E head wins. Some headaches are gone. You could run a Victor if you wanted with E heads. No need for KREs High Port crossover if you plan on running a thermostat. That is, if you want your cooling system to run like PMD intended.
I do not see any reason to raise your carb up for what you are doing.
BUT, you would have to wait for E heads to be back in stock.
This is what the bolt holes on the end of the head looks like if it will help your A/C bracket.

First one is 72cc head, 2nd is 87 cc head. Looks like they will be in stock November.