This will be a challenge: the number of people willing and able to run TOR relays is quite small, and the subcategory of those interested in a (new) cryptocurrency is even smaller.
Reaching critical mass for the currency to be interesting is going to be hard.
Try looking at it from the miners' perspective. The pitch isn't "buy our coin, and use this guide to help yourself install the dependencies needed to run our beta software." Instead, its "get paid coins, all you have to do is leave the relayCoin bandwidth-miner running while you sleep."
In the future, proof-of-bandwidth / proof-of-relay "coin" incentives on next-gen layer 3 protocols will bootstrap the transition to a global, p2p wireless mesh network (wireless at the edges and sparse areas, the big pipes and backhauls will still be fiber). It will look something like "leave this wifiMeshCoin nodeBox attached to your cable modem. It will open an unlocked wifi hotspot for anyone nearby. some people will get free access through a metered guest connection, and you might earn a little coin. But if you get lucky and your nodeBox can form a bridge connection to somebody else's nodeBox at a different ISP, that bridge relay will earn a lot of coin. Another option is to invest $2k to get a 4G/5G cellular micro-tower from NextGen Labs, one of those could earn you $500/mo in relayPower if there are enough unlocked CDMA phones in your area. You can resell the unlocked phones as well."
It's still going to be a challenge, but that makes a more manageable one :)