Do some flying before you decide what you prefer. Do some RAAus training up till solo in order to achieve it for the cheapest cost $$$.
After ten or so hours decide what type of flying you'd like to do one day. Local or Xcountry? Passenger or alone? Career even?
It's hard to decide what you'll actually end up doing until you've gotten the exposure. Purchase or syndicate? -I'd own something small and just hire the big one when you need it?
I'm guessing your asking for opinions. Here's mine. Although people say that single seaters aren't economically viable and cost 5/6 of a two seater to build anyway;
But I find them much more fun. ...Yen would be having an absolute ball in that Corby Starlet.
Properly equipped, single seaters perform much better in all respects. Nimble, faster and responsive, less weight, smaller engine choices and less cockpits to furnish (1/6th). (Read Kit_Planes Magazine July 2018, article pg. 2).
What I realized is that despite having more fun in single seaters, I flew alone 99% of the time anyway whilst gaining hours towards an RPL, PPL after gaining a RPC.
Do the Xcountry, flight radio for VFR, controlled aero and airspace endorsements, BAK and Human Factors exam for your RPL whilst training at a controlled aerodrome and undergoing dual time with a GA instructor in a C-152 or something else for the required hours, training and check flight. Get an ASIC and Class 1 or 2 medical.
Own/build a single or two seater to keep your hours up because you need to afford not just to fly, but fly regularly. That's important! Register it VH experimental (once only rego payment) and join the SAAA and do a self-maintenance course and fly up to 1500kg if you want to go down that route.
When you need something with several seats, simply hire a suitable plane for the odd occasion when five people come flying with you rather than owning one. Owning a big bus isn't viable if it spends more time in the hangar not getting used. Remember that Certified vs Experimental aircraft can also make a HUGE price difference in maintenance. eg) TSO'd avionics for certified aircraft is astronomical in costs and servicing. Buy something that you WILL use weekly. :) :)