what makes you want those seeds specifically?
I can 100% guarentee you'll find something way better locally.
7% thc is on the very very low side, so at its most potent, how potent can it really be? Local genetics testing 15 - 20% thc, but theres lower stuff too around 7% if that's what you going for.
Besides that, the descriptions breeders give are all selling points and marketing tactics based on the selected breeders cut. The sativa/indica only indicates grow style and nothing else - short or tall plant, thick or narrow leaves, long or short flower time - no cerebral high no body high type stuff, that's nonsense. All that will depend on the state of the trichomes when harvesting - early harvest will be more cerebral high get your mind going sometimes leading to anxiety and late harvest will make you feel sedated like a body high and you feel weak and tired. Another thing I can 100% guarentee you is that the seeds need to be extremely well stabilized and then still with the most stabilized F5 and higher gene pools still give you phenotypical variation. That's why when you pop a bag of 10 seeds from one strain you get 10 different plants. That's why we phenohunt. It's a luck of the draw game, next thing to look at is - say you got a clone of the breeders cut, your grow setup, techniques and approach need to be so fine tuned and consistent to get that plant to express exactly the way the breeder described it, more often than not if we use generic soils and nutes and do the bare minimum in the way of technique then we can grow the same clone of the same pheno and get different expressions every time, because conditions fluctuate. I got many plants here, looking at indoor if I harvest during summer I get green plants and if I harvest during winter I get purple plants. Not only does the anthocyanin production increase during colder months, there is a whole different end product, the taste of the bud changes and the overall expression of the plant changes. Clear indication that environment impacts outcome. I prefer green buds as they taste better and because I like the taste better I feel higher, cause of the entourage effect and the fact that it's not only the psychoactive properties of the thc that gets you high. That's why extract makes you high for 30min and flower makes you high for several hours, the trichomeless plant material does something too.
I would suggest if you want something good look at what the hype strains are at the moment you wana buy, see if you can get a clone first. If you really neeeed to buy a seed, a good rule is the cheaper the seed the more you need to buy and "dig through" like a small phenohunt to get the keeper. Generally the more you spend the fewer seeds you gotta pop to find a keeper. With that said the local guys got extremely crazy fire genetics for crazy good prices so you can buy a butt load and be sure you gona find a winner.