Look on Ebay for a suitable secondhand reamer, preferably made by T&J (Taylor and Jones). These reamers are much higher quality than the new ones made in India and you can get them pretty cheaply, with a degree of patience. I have equipped myself this way and whilst some purchases have been disappointing, the majority have proved to be excellent value for money. You can also get new cutting blades from T&J but they do know how to charge if you order a set.
36 4G, 37 VH, 54 KH(A), 75 Healey 1000/4, 52/53 ex ISDT KHA (project).
Former Machine Registrar & Archivist, General Secretary and Single Spares Organiser (over a 25 year period).
Now Archivist once more - but not Machine Registrar.