My inclination would be to define the property edge with a row, or double row of street trees. There is nothing that qualifies as an eyesore needing screening and no projected use of the side yard requires privacy. So why hide a nice view? I'd invite people passing by to look into and admire your yard. Street trees (limbed up so that the view is maintained, of course!) add order and stateliness, mark the property limits, generally dress it up and display your affection for it. How you handled the ground space below the trees would depend on their spacing and shade pattern. It could be grass, groundcover (something easy) or mulch. Because the location is some distance from the house and because you have time, if you wanted, you could use trees that are more unusual, Maclura pomifera for instance. They should look nice, but don't need to reek of high formality unless that's what you want. Where you need privacy for the back yard you could use sizable shrubs placed somewhere near the fence as a hedge or in carefully placed groupings. The end of the house needs a couple of trees to shield some of the blank wall space. They could be shade or flowering trees. They don't need to be jammed up on the house but could be spaced a distance away proportionate to their ultimate size. A few shrubs to fit with the lower level blank space could be worked into the scheme.

I love big sinks. Just has a conversation with the plumber last week. I personally like a large single bowl but my plumber, sister, and friends all say a double bowl is better. Wish I could fit a giant sink like you want. Description: 42 x 22 Stainless Steel: Ravinia Extra Deep Double Bowl Drop-in Kitchen Sink, 2-hole punching - 42 x 22 x 10 (Faucets, strainers and other accessories not included unless noted.) - with sound deading insulation Description: 39-1/2 x 18 Undertone Triple Bowl Undercounter Kitchen Sink - Accessories and Faucet not included - WITH SOUND DEADENING INSULATION - For Industrial, Commercial and Residential Applications Description: 44-11/16 x 18-1/2 Undertone Triple Bowl Undercounter D-bowl Kitchen Sink - Accessories and Faucet not included Description: 39 x 25-3/4 x 10 18 Gauge Stainless Steel PRO TaskSink Kitchen Sink - Single Bowl Drop-in ( Here is the link. http://www.plumbingandlightingfixtures.com/kitchensinks_by_brand~brand~Kohler~kitchensinksize~39_Inches_Wide.aspx

Also take a look at the view between the two rooms. If that's a relatively open sunroom (no curtains) you now have a straight shot view into your great room. That might not be a big deal, but only you can decide. We stayed in a renovated B&B where they decided to put a double-sided fireplace between the bedroom and the adjacent bathroom that had a large jacuzzi tub. It added ambiance to the bathroom, but also allowed someone laying on the bed to have a straight shot view of whoever was sitting on the commode in the bathroom. Site lines were not planned well. Bruce

Yes, my question also is how you plan to vent this FP. I wish I had a dollar for every person I knew who had a double-sided fireplace between the bedroom and the bathroom and never used it after the first week. Select two very good electric fireplaces and install one in each room. https://www.amazon.com/s?k=electric+fireplace+inserts&i=garden&crid=FMUYXSWJCXY7&sprefix=electric+fireplace+inserts%2Cgarden%2C121&ref=nb_sb_noss_1 https://www.amazon.com/s?k=electric+fireplace+inserts&i=garden&rh=n%3A1055398%2Cp_89%3ADIMPLEX&dc&ds=v1%3AUsYfIkBHNHei9uF1oWSrYx1ZSVa3%2Bf7ks%2FFRfZXKAm8&crid=FMUYXSWJCXY7&qid=1667315227&rnid=2528832011&sprefix=electric+fireplace+inserts%2Cgarden%2C121&ref=sr_nr_p_89_2