Check viability before spending anything

Two questions decide it. Is the frame square, measured across both diagonals? And can you still buy springs, ropes, wheels and upholstery for the model?

A no to either makes refurbishment a poor investment. A racked frame cannot be economically corrected, and a machine without parts will need this same work again with nothing available.

What a full refresh involves

Working through in order, each step is straightforward and none require specialist tools beyond what the manufacturer specifies.

Typical refurbishment scope and cost
ItemTypical costEffort
Spring set$120–$25015 minutes
Ropes (pair)$40–$9030 minutes
Carriage wheel set$80–$18045 minutes
Upholstery panel$150–$3501 hour
Carriage stoppers$20–$5010 minutes
Frame refinish (timber only)$0–$150 DIYA weekend

Order of work

Do the wheels and rails before the upholstery, because working on the carriage is easier with the pad off and you do not want to scuff new upholstery during the mechanical work.

Fit springs and set rope lengths last, then run the carriage through its full travel unloaded before the first session.

When to buy instead

If the frame is out of square, the rails are scored, or parts are discontinued, buying replaces a machine with a fixed remaining life. Spending $600 on a machine that will still be compromised is worse value than putting it toward a new one.

For a studio, there is a further consideration: a refurbished odd machine in a matched room reintroduces the standardization problem that matched rooms exist to solve.