Be careful of the SH beartrap... gadgets and goodies...keep your priorities straight.
Philippe... be careful... dont fall into the trap of spending time on nice things unless you are rock solid on the necessities... electric pump is trivia... amp meter is trivia...connecting all electronics is trivia and risks creating a fragile system where one bad connector nukes everything... and seeing you are still unsure of basic sailhandling while researching trivia items. SH folks tend to love their tech and gadgets, I do, but this is a trap.
Maybe you have all this sorted already... in which case great and just sail more.
Priorities... in priority order...
1
Rock solid electrical power - so you can sleep with Auto driving. It can be sunless the first few days so solar panel may give little power while beam reaching Auto is pulling max current of likely 4-7 amps. What is your backup power? A spare panel? A small honda generator? You need backup power.
2
Two rock solid autopilots. If your primary fails its likely due to strain... so your backup needs to be just as solid. Ram above deck? Needs a spray and sun cover or it will cook and fail.
3
Sail sail sail with Auto with the chute up. Make all the learnings and mistakes now (before May so you still have time to adjust). Nothing like banging 10 jibes in a row in a decent breeze by yourself (in a breeze... in the slot... not in calm raccoon straits). You want to not just know how to do it - but be able to do it at night sleep deprived.
Now we get to things you want to do but is more about really racing and maybe comfort...
4
Canvas cover or dodger on main hatch. When you have 6 inches of green water across the deck, the best hatches can still let gallons of water in.
5
Got all the above solid? Then navigation. For starters a chartplotter on deck hooked to your AIS. Sorry that PC below deck is in the wrong place when you are dodging ships in the dark or fog - or trying to find a friend in the water (hey a 5" chartplotter is under $500) - plus will help you steer straight. Oh did they tell you touch screens dont work when your fingers are wet?
6
Pay Commanders Marine a $100 for a professional routing. Sorry but using routing software will take a 50 to 100 hours of practice to use right - plus taking a bit of weather training to be effective.
7
With all the above checked off, sail some more. All the spring ocean races... Lightship, Duxship, DH Lightship and Farallones, crewed Farallones.
8
Okay so you want to do software routing? If all the above is done and well in hand, go for it. If you want... happy to help you get up to speed if you have the above well in hand (polars, gribs, identifying fragile routes, etc).
What else...
Sort out your sleep patterns if you can... to avoid getting fatigued early... being fatigued makes for bad decisions. Little things can help like stop with caffeine a week or two before the race. Sleep 10 hours per day the last few days before the race (yes not easy..
But do your best) Take a nap as soon as you clear the vessel traffic area... take another nap when you clear the Farallones.
And stop to smell the roses (the sea)... the nights are unforgettable... beautiful. The Milky Way...