That and the issue of bodywork yes - An estimate was £10 - £12k of welding required
The 20TS has got much better bodywork but doesn't run reliably. The R30 has a low miles and first time starting engine, but the box has lost first. The long term answer will probably be to sacrifice the R30 for it's engine and turn the R20 into a R30.
But I couldn't bring myself to do that tbh