All of this is great advice and I will not contradict a lick of it. But I will add some options you might want to consider. I am thinking of this solely because you are coming from Boston. The fickle spring weather of the PNW (says the lightweight from California) will not scare you, which is great. Think May in Martha's Vineyard at times, interspersed with New England summer. Your Webasto heater may be your best friend. It has certainly been my thermally-challenged wife's best friend. Pretty much all the way until summer starts in the PNW: July 5th.
Presumably you will be coming out of Des Moines where the factory usually (but not always) launches their boats. There is no there, there, so off you go as soon as possible. If you have 10 days, you might want to consider a first night after check out at Bell Harbor, just so you can see the famous Pike Place Market, replete with people chucking fish and an incredible array of flowers. The Seattle Art Museum is open as well and within walking distance, you just need reservations. Even though Seattle is a bit of covid ghost town, it is still marvelous.
After that, all the above advice applies about getting north somewhere in the vicinity of Anacortes. Frankly, in that boat, with that speed, Deception Pass is not a problem, as long as you are adept at boat handling and wiling to burn some fuel. When the RT folks send their boats up to the September Rendezvous in Roche Harbor, the fast ones like yours make it in a day. Rosario Straits can be rough, so always try to avoid a tide-against-wind scenario.
You got good advice on all the rest. Everything depends on weather conditions. I highly recommend that you take an iPad, download one of the leading navigation apps that support Active Captain, and consult it for planning every day. All of this is dependent on the weather, and my favorite weather site is WindyTy. The most dangerous thing on a boat is a schedule, so prepare to be flexible.
Finally, whenever weather conditions permit (winds less than 15 kts, seas less than 2' ) we make the jump across the Juan de Fuca Straits from Cattle Pass (between San Juan and Lopez Islands) and head for Port Townsend. It is a wonderful town to walk around, including the old Victorians up on the hill (built up there due to the sewer smells and licentious behavior of sailors down near the docks...in the past, of course). From there you can work your way back to Des Moines down Admiralty Inlet. Port Gamble, Mats Mats Bay, and lots of other stops in between if there is time.
Our personal goal is to never cross your own wake. And the PNW is perfect for this. Arguably the best cruising grounds in the world. Pity about the weather, sometimes, but the good days are worth the payoff.
Enjoy! All of us RT owners remember with acute clarity what our first trip out on the boat was like. It is electric with excitement. You will do same! See you anchored in Tashmoo Pond this summer when your boat is back in Boston.
Jeff
ps: if you want to whet your appetite for this, binge watch the YouTube videos of MV Freedom. The cute couple cruising the PNW in their Nordhavn. We should all be that young and good looking. Again. If ever.