Go here: https://archive.org/details/machineryrepairm003995mbp and download the PDF of the Machinery Repairman 3 & 2, IMHO one of the best kept secrets in the machining world. I was a MR in the Navy and this book was our go to source for everything. It has an excellent section on grinding HHS tool bits. It was also our study guide to prepare for our technical knowledge tests for advancement. You also cannot beat the price.
BTW, start looking for a good used Baldor grinder on Craig's List.
BTW, start looking for a good used Baldor grinder on Craig's List.