If you want make your money work against climate change, I wouldn't recommend this service - it's simply not competitive compared to voluntary carbon markets, in which well-certified projects can offset a teqCO2 for less than 10 USD (that's 100 times more efficient carbon offsetting than ClimeWorks, for high-end projects), and do so with additional co-benefits in terms of biodiversity and livelihood of local communit…
Planting tree is nice, but theses solutions you give have limits, which will only make the cost higher. This is a technological solution, sure it has limits too, but its cost will only go down by being done more efficiently and at one point, we will need to do theses things too, thus the sooner we reach lower price, the better we will be.
As you said, it's 100x more expensive, thus no industrial client will consider this solution yet, but you can afford it. Be the first stone that allow them to become 50x more expensive, etc...
Being client to them show also that we are ready to put money where our mouth are. That push toward more investment in theses spheres because there's money in the game. Investing into planting trees at 1/100 the cost... well except exploiting even more cheap labor... there's no money to be made.