I was considering doing this exact thing.
The Technics tonearm has a mounting distance of 215mm and an effective length of 230mm. I believe - but I'm not certain - that the effective length measurement is what you need to compare to the Hadcock's Pivot to Stylus Point measurement.
According to the specs in the tonearm database of cartridgedatabase.com for the Hadcock arms, the 228 Export has a mounting distance of 212.85, and an effective length of 228.6. The 242 arm has a mounting distance of 226mm and an effective length of 243.8mm.
Between the two Hadcock arms, the 228 Export is closest to the Technics arm. Will it work? I don't have the answer.
Also, I learned that an adapter ring is available for the Hadcock arms so they will be a "drop-in" fit for a Rega mount. Therefore, you could use the Origin Live Rega mounting plate made for the Technics SL12xx tables along with the adapter for the Hadcock arms. What mounting plate were you researching on E-Bay?
The Technics tonearm has a mounting distance of 215mm and an effective length of 230mm. I believe - but I'm not certain - that the effective length measurement is what you need to compare to the Hadcock's Pivot to Stylus Point measurement.
According to the specs in the tonearm database of cartridgedatabase.com for the Hadcock arms, the 228 Export has a mounting distance of 212.85, and an effective length of 228.6. The 242 arm has a mounting distance of 226mm and an effective length of 243.8mm.
Between the two Hadcock arms, the 228 Export is closest to the Technics arm. Will it work? I don't have the answer.
Also, I learned that an adapter ring is available for the Hadcock arms so they will be a "drop-in" fit for a Rega mount. Therefore, you could use the Origin Live Rega mounting plate made for the Technics SL12xx tables along with the adapter for the Hadcock arms. What mounting plate were you researching on E-Bay?