Oh and sanity check it feels a bit over-tuned for the fuel and supply costs. For comparison, a Phaeton holds 200 less fuel, has the same max burn and jump cost, and costs only 2 supply less
than the Yonder. Likewise the Yonder is almost completely better than the Colossus, which has the same supply usage, holds 150 more, burns slower at 7 max, and has double the jump cost.
Based on the sprite and stated capabilities, I'd say it should hold about 600 fuel, travel at 7 max burn, consume 3 fuel per light year (giving it a range of 200 light years, which is pretty good I think), and have a cargo hold carrying 400 supply, and cost 10 supply per month, giving it 40 months of uptime or enough supply to survey a few planets. I'd also increase the crew capacity to 380 or so and a skeleton crew of 180. For a large ship like this, a lot more crew are generally needed for operations, not to mention surveying planets often demands more crew than the 150 this ship can hold. With these stats, It'd still be a one ship wonder that I'd feel comfortable taking out with a small escort.
Oh and I'd make it a civilian craft, possibly with a larger sensor profile like 120.