I got some expensive “static” dollies that don’t take up as much room. The hydraulic ones are nice, but I needed something compact. With mine, you have to jack the car up to get them under the tires.
They have needle bearing casters and are rated over 6,000 lbs. Way overkill for these cars.
For light little cars like the TD replica’s, a set from Harbor Freight may be the cheapest and very adequate.
A friendly tip: get them with hard rubber, not metal casters, whatever you get.