Hello and welcome ExL Steve.
Nice to get the chance to live somewhere many of us on here only visit for a week or two on holiday.
What's the character of the beach... deep soft sand or firmer? Tide go a long way out?
Have you read the thread below which in post 77 has my final moving the SIB long distances setup...
https://www.rib.net/forum/f50/how-fa...s-71295-2.html
Depending on path width the SIB itself is the very best wheelbarrow for the outboard and kit so if you can set up at home and trundle as one. Any path about 1m wide or more should be sufficient.
T38 a good choice. Buy Roflhat's 20hp. He's well regarded on here and it's a very fair price, I reckon only not selling to date as he's so far north but you'll be half way there in your new location.