Welcome Sam, the main issue has always been and continues on, is the ability to truly try out our 30-50 year old technology / hobby. The Dream and Illusion is mesmerizing and the mirage of hair in the wind driving a lovely shaped 356 is just that an illusion, and non of us knew that we were deluded.
Hence on this forum, we have the collective experience of many who have owned originals and or now own replicas of every shape and build type.
I have personally grown to like many different manufacturers and builds that were done by individual owners but the advice on this forum, especially well worded by our resident plastic car expert shows us that newbies come in with one dream and the collective is simply trying to help out the sorting process. The sorting process in the MIND that is the car comes after.
Trying to bring a modicum of reasoning to the choices to make would require a volume that is being written over and over again by all of us on the forum.
So whatever you choose AC or Subie, or other and what suspension, beam, 911, coil overs you will have to find out for yourself and live with it, at least till you upgrade.
Some who have owned both powerplants are trying to ascertain the amount of maintenance acumen and the appetite for maintenance the new member on the forum has, so that he is less disapointed in his purchase. Don't you hate buyers remorse
Plan well, and if you think you will do it later then maybe it is better to do it at the start of a new build. Buy once...
Everyone here would agree that first time ventures would be well served to buy used, as close a car as their dream car would be considering their budget of course, this will allow then to sell the car and order their dream car.
Hope this helps, welcome to the madness