I also surf and took up windsurfing many years ago because summer sucks for waves.

Some other points to consider and this depends on your patience and commitment, the steps
Uphaulling
Moving forward
Tacking
Beach start
Water Start
The walk of learning

Footstraps
Harness (plenty of catapults - when this happens sheet in hard, look over your shoulder and just do a forward loop, you will be the only one who can forward and not jibe - wish someone told me that when I started)
Jibing - easier to learn on swells but don't forget to keep the tacks going a skill worth keeping.
So now you can windsurf - time frame - maybe the summer depending on the hours you put, especially on jibing.
Better to get lessons and hire gear for a bit, you will out grow the 145l board quicker than you think. Get something you can grow into that won't fustrate you too much.
Gear - you seam to get a lot of gear, two boards, three sails, 1 mast 1 boom minimum. Add a wife, kids and everyone wants to windsurf and now you need a trailer - I'm not there yet. This has the advantage that she will sail smaller gear so when it gets windy you just take her gear and you don't have to re-rig, but it also works in reverse

Oh then there's foiling -

then your really stuffed.
So and as bad as this is, especially in this forum, kiting - 8hrs of lessons and your ready for the waves, less gear to carry you will never need a trailer for you gear. Downside - trees and getting dragged down the beach, which is fun to watch especially when having a beer

. There are plenty of windsurfers that do both.
I'm not trying to put you off, I love to sail I wish I was better at it and had more time to do it, just food for thought it is a definite commitment.
Windsurfing is definitely a stoke, but surfing is better.