Yes but it's not documented.
Following the 220 conversion which I did for the MaCom Orion, ge Rangr and ge MP-A HT, some of which Doug Bade posted for me on some of the yahoo groups years ago I used a similar Orion mobile sc4 file for my MRK-II 220 mod.
As mentioned it is more involved than the vertex ftl-2011, ge's; Orion, Rangr and MP-A, all 220 conversions which I did many years ago.
The MRK-II vco was the toughest because unlike the Vertex, Orion, Rangr and MP-A HT, which were easy to open up, the mrk-ii vco is not easily cracked open and the mod required a new homebrew vco.
Additionally a new rx preselector and of course the tx stages needed considerable mods.
I loaned my 220 mrk to a friend near my other house in Prescott Az and after he passed in 2012 I never found out who has the radio.
The same thing happened to my 220 vertex ftl-2011 220 MHZ mod and the same SK ham.
These days I use my MaCom 220 Orion mobile, Ge Rangr 220 base and my MP-A 220 daily mut now my newest favorite 220 ht is a Motorola HT1250 LS+ 220 ht WHICH by the way didn't require any hardware mods at all for either the rx or tx producing excellent performance on 220 ham repeaters.
