Thanks.
For now am reviewing sources to work out who was equipped with what at Craibstone and Tillyangus. Also checking out 28mm peel towers and notes on Corgarff and Towie castles. (Possibly going with Caliver Battlefield buildings here)
For my foot I am going to work on this basis -
Retinue (ie raised by a lowland noble or city) - pike and caliver
Levy - (ie lowlanders called up in a hurry or from shire or villages) - polearms
Highland levy - clansmen
Fierce clan, household bodyguard, haunchmen, etc - Forlorn Hope
Skirmishing shot/bow - commanded shot
Mounted Scots - trotters
So at the moment Forbes men at Craibstone will be pike and shot with trotters whilst Gordons will be some retinue pike and shot, forlorn hope and some levy. Archers will also make an appearance. Forbes men were retinue troops from Lothian and the south and mounted gentleman. Gordon's were town troops plus his own men so a mix of levy, retinue and FH.
Tillyangus will be levy polearms, forlorn hope for the harder better equipped men and some skirmishing shot/bows. Both sides fielded men from their own households and surrounding rural lands but shouldn't be thought of as "highland clans".
Corgarff will be a what if with trotters and skirmishing forlorn hope Gordon's squaring up against some very annoyed Forbes trotters, levy polearms and shot/bows trying to stop Adam burning down the house.
I plan on using Pikemans Lament with some borrowings from Lion Rampant as you can probably tell from the troop types. I've also tinkered with Victory without Quarter for when my son doesn't want to play!