Gold crown have caroom rubber on them just someone installed pockets on it too. sorry couldnt resist.
1. Existing rails wont work to convert.
2. Have to make all new rails and design how to tie in the corners if you want metal corners.
3. Build laminated rails so they wont warp or twist.
4. Design for your blind rails.
5. Calulate your playing size.
6. Determine were to put feather strip.
7. Calculate bevel and rubber hieght for 2-3\8" diameter ball.
8. list goes on to totaly do it right.
Depending on what size table some companies offer already made conversion rails.
Admiral for 8' tables thats all they make.
Ohlahousen might still make some.
Most dont make the rails right usualy out 2x4 or 2x6 solid wood. not alot of real engineering put into thier product.
There is one company that has put alot of time and money into this particular area recently and they should be releaased this year at the show for 8' and 9' tables. Ie simialer bolt pattern to Brunswick, Ohlahousen and Diamond tables most of you common design tables. This way you can have a true set of Caroom rails that play right.
Like Glen said what size table? there might be a good way or a great way to do it right depending on brand of table or bolt pattern.
Craig