Tyranids Counts-as Necrons?

I know many of you have seen the superlative Tyracrons from Musings of a Metal Mind, a Necron counts-as Tyranid army.  I'll blame this amazing example of the hobby as the germ for the idea, but after reading and watching batreps on how the Necron codex and its units work, I've lately been captured by an idea.  I think it might be possible to build a "Tyranid" army using the Necron codex that would allow you to field Tyranid-like abilities consistent with the fluff and maybe more effective than the Tyranid codex.  I should probably have another pint and chalk it up to wishful thinking, but I thought I'd put the ideas down here and see what you all think.  Pretty sure the biggest challenges are in the vehicle/TLoS department/modeling for advantage.  Note the unit comparison below aren't 1:1 analogues that translate directly across FOC slots, but are just general ability comparisons.

HQ
Tyrant/Tyranid Prime, Tyrant Guard - can be accommodated for with different Overlord/Destroyer Lord or C'Tan Shard combinations pretty easily (although C'Tan isn't HQ)
Tervigon HQ - no real analogue in the HQ slot

Elites
Lictors, Ymgarl - Flayed Ones and Canoptek Wraiths both fill these roles pretty well.
Pyrovore - these even suck in the Necron codex ;)
Venomthrope - no real analogue
Hive Guard - while an absolutely key elite slot in the Tyranid codex, the closest match here is probably the Necron Destroyer
Zoanthrope - not a clear match here for a key fluff Tyranid unit

Troops
Tyranid Warriors - Immortals, Lychguards, Deathmarks
Genestealers - Flayed Ones or Wraiths
Hormagaunts - Flayed Ones?
Termagaunts - Necron Warriors
Tervigon - Canoptek Spyder perhaps?  Trying to parallel the troops and spawn functions ends up with a transport, probably the Ghost Ark
Rippers - One word: Scarabs

Fast Attack
Gargoyles - Canoptek Wraiths
Raveners - Canoptek Wraiths or Tomb Blades
Shrikes - Necron Destroyers, Tomb Blades, Triarch Praetorians
Harpy - Doom Scythe, maybe a Night Scythe?
Rippers - Scarabs

Heavy Support
Trygon/Mawloc - it's an absolute crime the Tomb Stalker didn't make it into the Codex; a Triarch Stalker is the next best bet; maybe Canoptek Sypder, from the deep strike/tunnel aspect, maybe a Monolith
Carnifex - maybe the Canoptek Spyder or Triarch Stalker
Biovore - no real analogue here
Tyrannofex - Doomsday Ark, Annihilation Barge, maybe a Monolith

This is my first attempt to get my thoughts down on paper - definitely haven't really researched the idea with any depth, or done any meaningful size comparisons, let alone thought it through to the point of trying to build an FOC-compliant Necron force using the matching models above.  Without going down that road to really check, I think this might be do-able though.  I think avoiding the big vehicles like Arks and Monoliths, and maybe even the Command Barges might be necessary to avoid TLoS issues.  Just some musings on a Saturday afternoon...

Primer Therapy Redux

After a solid afternoon of exploration at Home Depot, Lowe's, Michael's, and the local hobby store (trains, model rockets, r/c cars...), I found a few primers to bring home and try.  The first purchase was a big bottle of cheap white Gesso from Michael's, then I discovered Kilz has odor-free spray primer for ~$5, and regular stinky primer for ~$4.  Went to Home Depot and picked up a can of Rustoleum after reading OST's recent article over on Dark Future Games, looking at his comments about spraying from a distance.  Even though I've had issues with it before - increasing my suspicions that the problem is more me than the paint...   Then at Lowe's I found a can of cheap Valspar with a funky lid for about $5.  Laden with loot I descended to the garage for a trying evening of experimentation, which would ultimately culminate in a long, drawn out post with lots of pics that showcased my poor photography and hamfisted painting skills.  But...