Basically, I am looking to choose a size for all of my D&D figures going forward, monsters and party members alike, and stick to it for coherence and visual appeal. I prefer the aesthetic of the 80s figures modeled off of the monster manual, and I really dislike anything bigger than 28mm, even what people call heoric 28mm verges on too big for me.
My fear here is painting dozens or even hundreds of figures as I dive into this in the coming months only to decide that for actual gaming purposes I have crippled myself by adhering to the 1970s-1980s ranges and 25mm when I suddenly hit a wall and can't find what I need for the game (we play fairly often and regularly, typically every week). But I like to collect things and the narrower scope of sticking to that time period and knowing that basically all the figures will look correct together is appealing. Also, we play in Greyhawk, which to me is the implied setting of the AD&D MM.
Has anybody had similar considerations?
Yes, I have. I tried to collect monster figures, as well as demi-human figures, in proper scale to 25mm Humans (25mm tall, top of head, not the, 'to the eyes', nonsense). I play 2e AD&D, which super-sized the monsters, along with adding dice to the monsters' HD: Hill Giants changed from 9 HD, and 9 feet tall, to 11 HD and 11 feet tall! I
hate scale creep, both in miniatures, and in the game rules...
I decided to collect 25mm scale figures, along with monsters which matched up in proper size and scale, per the descriptions given in the 1e Monster Manual. It was a real challenge, and in the end, I gave up on it.
I did, however, find some successes:
54mm plastic Cave Men figures from a bucket sold by Wal-Mart, were perfect for Hill Giants! They are made by
TimMee Toys USA. I also found that
60mm Viking figures are perfect for Frost Giants.
The Papo, Schleich, and Safari, Ltd. toy dragons are superb, many do not require repainting from the factory, but others do. I look at their sculpts, not their paint jobs: a
Golden toy Dragon figure, converted to an
AD&D Bronze Dragon; a
Swamp Dragon toy, converted to an
AD&D Copper Dragon; a
Freedom Dragon, converted to a
Brass Dragon; a
Green Dragon which needs no painting, perfect from the factory --
a second scene, with commentary from the Dragon about his uninvited guests...
I have also converted some Halloween decoration Dragons to use as Draco-Liches:
the first one, facing off against the Brass Dragon;
the second one -- couldn't resist the temptation to do another one...
If you truly want to keep the figures in proper scale to one another, your best option is to get into 3D printing, as you can scale the STL files up/down as necessary, to make a perfect match to the sizes needed. Cheers!