1 year cliff, 4 year vest is standard. You may have to give away significantly more than 10% if your startup is very early stage and that person will be building the MVP. Less if you're later and can show some revenue.
Cash and equity aren't valued 1:1 - given a sliding scale, it almost always makes sense to go all cash. Usually equity is worth significantly less due to the risk and the vesting restrictions. Sometimes the growth potential offsets it, but for someone to believe that, you have to have everything lined up and have a compelling market size and growth rate.