Preparing to replace valve stem seals on the 1200.

I have the one in the picture but have found one on Ebay that might be easier/faster to use and wondering if anyone has ever used something like it. These old "arthur" laden hands might need an extension to the handle but I'd sure like something easier to use than what's in the picture. Plus, the pictured item has different length arms, something I've found to be a disadvantage in the past. Thinking of buying a second one and swapping the arms around so they're equal length. Here's the link to the one on Ebay, compare it to the pictured unit. Keep in mind, I'm not going to pull the heads, otherwise I'd use my big C type compressor which works really good.

https://www.ebay.com/itm/HD-Overhead-Valve-Spring-Remover-Compressor-Stem-Engine-Seal-Keeper-Replace-Tool/292159587076?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649