Buy icons(outline style) direct from becrisdesign.com . You will get the original design file that you can change stroke width or colors and get the ready to use assets such as .png and .svg files and also get .iconjar file to store, organize, search and use your icons the easy way.
Or buy individual icon form my portfolio on Iconfinder and get 50% discount on your first month of Iconfinder pro using this link
Thank you :)